diff --git a/kcsc-opensearch/.gitignore b/kcsc-opensearch/.gitignore
new file mode 100644
index 0000000..c2065bc
--- /dev/null
+++ b/kcsc-opensearch/.gitignore
@@ -0,0 +1,37 @@
+HELP.md
+.gradle
+build/
+!gradle/wrapper/gradle-wrapper.jar
+!**/src/main/**/build/
+!**/src/test/**/build/
+
+### STS ###
+.apt_generated
+.classpath
+.factorypath
+.project
+.settings
+.springBeans
+.sts4-cache
+bin/
+!**/src/main/**/bin/
+!**/src/test/**/bin/
+
+### IntelliJ IDEA ###
+.idea
+*.iws
+*.iml
+*.ipr
+out/
+!**/src/main/**/out/
+!**/src/test/**/out/
+
+### NetBeans ###
+/nbproject/private/
+/nbbuild/
+/dist/
+/nbdist/
+/.nb-gradle/
+
+### VS Code ###
+.vscode/
diff --git a/kcsc-opensearch/build.gradle b/kcsc-opensearch/build.gradle
new file mode 100644
index 0000000..ce37ea5
--- /dev/null
+++ b/kcsc-opensearch/build.gradle
@@ -0,0 +1,35 @@
+plugins {
+  id 'java'
+  id 'org.springframework.boot' version '3.2.4'
+  id 'io.spring.dependency-management' version '1.1.4'
+}
+
+group = 'com.dbnt'
+version = '0.0.1-SNAPSHOT'
+
+java {
+  sourceCompatibility = '17'
+}
+
+repositories {
+  mavenCentral()
+}
+
+dependencies {
+  compileOnly 'org.projectlombok:lombok:1.18.24'
+  annotationProcessor 'org.projectlombok:lombok:1.18.24'
+  annotationProcessor 'org.springframework.boot:spring-boot-configuration-processor'
+
+  implementation 'org.springframework.boot:spring-boot-starter'
+  implementation 'org.springframework.boot:spring-boot-starter-web'
+  implementation 'org.springframework.boot:spring-boot-starter-data-jpa'
+  implementation 'org.springframework.boot:spring-boot-starter-actuator'
+
+  // https://mvnrepository.com/artifact/org.opensearch.client/spring-data-opensearch-starter
+  implementation (group: 'org.opensearch.client', name: 'spring-data-opensearch-starter', version: '1.3.0'){
+    exclude group: 'org.opensearch.client', module: 'opensearch-rest-client-sniffer'
+  }
+
+  runtimeOnly 'org.postgresql:postgresql:42.3.6'
+
+}
diff --git a/kcsc-opensearch/gradle/wrapper/gradle-wrapper.jar b/kcsc-opensearch/gradle/wrapper/gradle-wrapper.jar
new file mode 100644
index 0000000..e644113
Binary files /dev/null and b/kcsc-opensearch/gradle/wrapper/gradle-wrapper.jar differ
diff --git a/kcsc-opensearch/gradle/wrapper/gradle-wrapper.properties b/kcsc-opensearch/gradle/wrapper/gradle-wrapper.properties
new file mode 100644
index 0000000..b82aa23
--- /dev/null
+++ b/kcsc-opensearch/gradle/wrapper/gradle-wrapper.properties
@@ -0,0 +1,7 @@
+distributionBase=GRADLE_USER_HOME
+distributionPath=wrapper/dists
+distributionUrl=https\://services.gradle.org/distributions/gradle-8.7-bin.zip
+networkTimeout=10000
+validateDistributionUrl=true
+zipStoreBase=GRADLE_USER_HOME
+zipStorePath=wrapper/dists
diff --git a/kcsc-opensearch/gradlew b/kcsc-opensearch/gradlew
new file mode 100644
index 0000000..1aa94a4
--- /dev/null
+++ b/kcsc-opensearch/gradlew
@@ -0,0 +1,249 @@
+#!/bin/sh
+
+#
+# Copyright © 2015-2021 the original authors.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#      https://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+
+##############################################################################
+#
+#   Gradle start up script for POSIX generated by Gradle.
+#
+#   Important for running:
+#
+#   (1) You need a POSIX-compliant shell to run this script. If your /bin/sh is
+#       noncompliant, but you have some other compliant shell such as ksh or
+#       bash, then to run this script, type that shell name before the whole
+#       command line, like:
+#
+#           ksh Gradle
+#
+#       Busybox and similar reduced shells will NOT work, because this script
+#       requires all of these POSIX shell features:
+#         * functions;
+#         * expansions «$var», «${var}», «${var:-default}», «${var+SET}»,
+#           «${var#prefix}», «${var%suffix}», and «$( cmd )»;
+#         * compound commands having a testable exit status, especially «case»;
+#         * various built-in commands including «command», «set», and «ulimit».
+#
+#   Important for patching:
+#
+#   (2) This script targets any POSIX shell, so it avoids extensions provided
+#       by Bash, Ksh, etc; in particular arrays are avoided.
+#
+#       The "traditional" practice of packing multiple parameters into a
+#       space-separated string is a well documented source of bugs and security
+#       problems, so this is (mostly) avoided, by progressively accumulating
+#       options in "$@", and eventually passing that to Java.
+#
+#       Where the inherited environment variables (DEFAULT_JVM_OPTS, JAVA_OPTS,
+#       and GRADLE_OPTS) rely on word-splitting, this is performed explicitly;
+#       see the in-line comments for details.
+#
+#       There are tweaks for specific operating systems such as AIX, CygWin,
+#       Darwin, MinGW, and NonStop.
+#
+#   (3) This script is generated from the Groovy template
+#       https://github.com/gradle/gradle/blob/HEAD/subprojects/plugins/src/main/resources/org/gradle/api/internal/plugins/unixStartScript.txt
+#       within the Gradle project.
+#
+#       You can find Gradle at https://github.com/gradle/gradle/.
+#
+##############################################################################
+
+# Attempt to set APP_HOME
+
+# Resolve links: $0 may be a link
+app_path=$0
+
+# Need this for daisy-chained symlinks.
+while
+    APP_HOME=${app_path%"${app_path##*/}"}  # leaves a trailing /; empty if no leading path
+    [ -h "$app_path" ]
+do
+    ls=$( ls -ld "$app_path" )
+    link=${ls#*' -> '}
+    case $link in             #(
+      /*)   app_path=$link ;; #(
+      *)    app_path=$APP_HOME$link ;;
+    esac
+done
+
+# This is normally unused
+# shellcheck disable=SC2034
+APP_BASE_NAME=${0##*/}
+# Discard cd standard output in case $CDPATH is set (https://github.com/gradle/gradle/issues/25036)
+APP_HOME=$( cd "${APP_HOME:-./}" > /dev/null && pwd -P ) || exit
+
+# Use the maximum available, or set MAX_FD != -1 to use that value.
+MAX_FD=maximum
+
+warn () {
+    echo "$*"
+} >&2
+
+die () {
+    echo
+    echo "$*"
+    echo
+    exit 1
+} >&2
+
+# OS specific support (must be 'true' or 'false').
+cygwin=false
+msys=false
+darwin=false
+nonstop=false
+case "$( uname )" in                #(
+  CYGWIN* )         cygwin=true  ;; #(
+  Darwin* )         darwin=true  ;; #(
+  MSYS* | MINGW* )  msys=true    ;; #(
+  NONSTOP* )        nonstop=true ;;
+esac
+
+CLASSPATH=$APP_HOME/gradle/wrapper/gradle-wrapper.jar
+
+
+# Determine the Java command to use to start the JVM.
+if [ -n "$JAVA_HOME" ] ; then
+    if [ -x "$JAVA_HOME/jre/sh/java" ] ; then
+        # IBM's JDK on AIX uses strange locations for the executables
+        JAVACMD=$JAVA_HOME/jre/sh/java
+    else
+        JAVACMD=$JAVA_HOME/bin/java
+    fi
+    if [ ! -x "$JAVACMD" ] ; then
+        die "ERROR: JAVA_HOME is set to an invalid directory: $JAVA_HOME
+
+Please set the JAVA_HOME variable in your environment to match the
+location of your Java installation."
+    fi
+else
+    JAVACMD=java
+    if ! command -v java >/dev/null 2>&1
+    then
+        die "ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH.
+
+Please set the JAVA_HOME variable in your environment to match the
+location of your Java installation."
+    fi
+fi
+
+# Increase the maximum file descriptors if we can.
+if ! "$cygwin" && ! "$darwin" && ! "$nonstop" ; then
+    case $MAX_FD in #(
+      max*)
+        # In POSIX sh, ulimit -H is undefined. That's why the result is checked to see if it worked.
+        # shellcheck disable=SC2039,SC3045
+        MAX_FD=$( ulimit -H -n ) ||
+            warn "Could not query maximum file descriptor limit"
+    esac
+    case $MAX_FD in  #(
+      '' | soft) :;; #(
+      *)
+        # In POSIX sh, ulimit -n is undefined. That's why the result is checked to see if it worked.
+        # shellcheck disable=SC2039,SC3045
+        ulimit -n "$MAX_FD" ||
+            warn "Could not set maximum file descriptor limit to $MAX_FD"
+    esac
+fi
+
+# Collect all arguments for the java command, stacking in reverse order:
+#   * args from the command line
+#   * the main class name
+#   * -classpath
+#   * -D...appname settings
+#   * --module-path (only if needed)
+#   * DEFAULT_JVM_OPTS, JAVA_OPTS, and GRADLE_OPTS environment variables.
+
+# For Cygwin or MSYS, switch paths to Windows format before running java
+if "$cygwin" || "$msys" ; then
+    APP_HOME=$( cygpath --path --mixed "$APP_HOME" )
+    CLASSPATH=$( cygpath --path --mixed "$CLASSPATH" )
+
+    JAVACMD=$( cygpath --unix "$JAVACMD" )
+
+    # Now convert the arguments - kludge to limit ourselves to /bin/sh
+    for arg do
+        if
+            case $arg in                                #(
+              -*)   false ;;                            # don't mess with options #(
+              /?*)  t=${arg#/} t=/${t%%/*}              # looks like a POSIX filepath
+                    [ -e "$t" ] ;;                      #(
+              *)    false ;;
+            esac
+        then
+            arg=$( cygpath --path --ignore --mixed "$arg" )
+        fi
+        # Roll the args list around exactly as many times as the number of
+        # args, so each arg winds up back in the position where it started, but
+        # possibly modified.
+        #
+        # NB: a `for` loop captures its iteration list before it begins, so
+        # changing the positional parameters here affects neither the number of
+        # iterations, nor the values presented in `arg`.
+        shift                   # remove old arg
+        set -- "$@" "$arg"      # push replacement arg
+    done
+fi
+
+
+# Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
+DEFAULT_JVM_OPTS='"-Xmx64m" "-Xms64m"'
+
+# Collect all arguments for the java command:
+#   * DEFAULT_JVM_OPTS, JAVA_OPTS, JAVA_OPTS, and optsEnvironmentVar are not allowed to contain shell fragments,
+#     and any embedded shellness will be escaped.
+#   * For example: A user cannot expect ${Hostname} to be expanded, as it is an environment variable and will be
+#     treated as '${Hostname}' itself on the command line.
+
+set -- \
+        "-Dorg.gradle.appname=$APP_BASE_NAME" \
+        -classpath "$CLASSPATH" \
+        org.gradle.wrapper.GradleWrapperMain \
+        "$@"
+
+# Stop when "xargs" is not available.
+if ! command -v xargs >/dev/null 2>&1
+then
+    die "xargs is not available"
+fi
+
+# Use "xargs" to parse quoted args.
+#
+# With -n1 it outputs one arg per line, with the quotes and backslashes removed.
+#
+# In Bash we could simply go:
+#
+#   readarray ARGS < <( xargs -n1 <<<"$var" ) &&
+#   set -- "${ARGS[@]}" "$@"
+#
+# but POSIX shell has neither arrays nor command substitution, so instead we
+# post-process each arg (as a line of input to sed) to backslash-escape any
+# character that might be a shell metacharacter, then use eval to reverse
+# that process (while maintaining the separation between arguments), and wrap
+# the whole thing up as a single "set" statement.
+#
+# This will of course break if any of these variables contains a newline or
+# an unmatched quote.
+#
+
+eval "set -- $(
+        printf '%s\n' "$DEFAULT_JVM_OPTS $JAVA_OPTS $GRADLE_OPTS" |
+        xargs -n1 |
+        sed ' s~[^-[:alnum:]+,./:=@_]~\\&~g; ' |
+        tr '\n' ' '
+    )" '"$@"'
+
+exec "$JAVACMD" "$@"
diff --git a/kcsc-opensearch/gradlew.bat b/kcsc-opensearch/gradlew.bat
new file mode 100644
index 0000000..25da30d
--- /dev/null
+++ b/kcsc-opensearch/gradlew.bat
@@ -0,0 +1,92 @@
+@rem
+@rem Copyright 2015 the original author or authors.
+@rem
+@rem Licensed under the Apache License, Version 2.0 (the "License");
+@rem you may not use this file except in compliance with the License.
+@rem You may obtain a copy of the License at
+@rem
+@rem      https://www.apache.org/licenses/LICENSE-2.0
+@rem
+@rem Unless required by applicable law or agreed to in writing, software
+@rem distributed under the License is distributed on an "AS IS" BASIS,
+@rem WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+@rem See the License for the specific language governing permissions and
+@rem limitations under the License.
+@rem
+
+@if "%DEBUG%"=="" @echo off
+@rem ##########################################################################
+@rem
+@rem  Gradle startup script for Windows
+@rem
+@rem ##########################################################################
+
+@rem Set local scope for the variables with windows NT shell
+if "%OS%"=="Windows_NT" setlocal
+
+set DIRNAME=%~dp0
+if "%DIRNAME%"=="" set DIRNAME=.
+@rem This is normally unused
+set APP_BASE_NAME=%~n0
+set APP_HOME=%DIRNAME%
+
+@rem Resolve any "." and ".." in APP_HOME to make it shorter.
+for %%i in ("%APP_HOME%") do set APP_HOME=%%~fi
+
+@rem Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
+set DEFAULT_JVM_OPTS="-Xmx64m" "-Xms64m"
+
+@rem Find java.exe
+if defined JAVA_HOME goto findJavaFromJavaHome
+
+set JAVA_EXE=java.exe
+%JAVA_EXE% -version >NUL 2>&1
+if %ERRORLEVEL% equ 0 goto execute
+
+echo. 1>&2
+echo ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH. 1>&2
+echo. 1>&2
+echo Please set the JAVA_HOME variable in your environment to match the 1>&2
+echo location of your Java installation. 1>&2
+
+goto fail
+
+:findJavaFromJavaHome
+set JAVA_HOME=%JAVA_HOME:"=%
+set JAVA_EXE=%JAVA_HOME%/bin/java.exe
+
+if exist "%JAVA_EXE%" goto execute
+
+echo. 1>&2
+echo ERROR: JAVA_HOME is set to an invalid directory: %JAVA_HOME% 1>&2
+echo. 1>&2
+echo Please set the JAVA_HOME variable in your environment to match the 1>&2
+echo location of your Java installation. 1>&2
+
+goto fail
+
+:execute
+@rem Setup the command line
+
+set CLASSPATH=%APP_HOME%\gradle\wrapper\gradle-wrapper.jar
+
+
+@rem Execute Gradle
+"%JAVA_EXE%" %DEFAULT_JVM_OPTS% %JAVA_OPTS% %GRADLE_OPTS% "-Dorg.gradle.appname=%APP_BASE_NAME%" -classpath "%CLASSPATH%" org.gradle.wrapper.GradleWrapperMain %*
+
+:end
+@rem End local scope for the variables with windows NT shell
+if %ERRORLEVEL% equ 0 goto mainEnd
+
+:fail
+rem Set variable GRADLE_EXIT_CONSOLE if you need the _script_ return code instead of
+rem the _cmd.exe /c_ return code!
+set EXIT_CODE=%ERRORLEVEL%
+if %EXIT_CODE% equ 0 set EXIT_CODE=1
+if not ""=="%GRADLE_EXIT_CONSOLE%" exit %EXIT_CODE%
+exit /b %EXIT_CODE%
+
+:mainEnd
+if "%OS%"=="Windows_NT" endlocal
+
+:omega
diff --git a/kcsc-opensearch/settings.gradle b/kcsc-opensearch/settings.gradle
new file mode 100644
index 0000000..6cb0f71
--- /dev/null
+++ b/kcsc-opensearch/settings.gradle
@@ -0,0 +1 @@
+rootProject.name = 'kcsc-opensearch'
diff --git a/kcsc-opensearch/src/main/java/com/dbnt/kcscopensearch/KcscOpensearchApplication.java b/kcsc-opensearch/src/main/java/com/dbnt/kcscopensearch/KcscOpensearchApplication.java
new file mode 100644
index 0000000..361e108
--- /dev/null
+++ b/kcsc-opensearch/src/main/java/com/dbnt/kcscopensearch/KcscOpensearchApplication.java
@@ -0,0 +1,16 @@
+package com.dbnt.kcscopensearch;
+
+import org.springframework.boot.SpringApplication;
+import org.springframework.boot.autoconfigure.SpringBootApplication;
+import org.springframework.boot.autoconfigure.data.elasticsearch.ElasticsearchDataAutoConfiguration;
+import org.springframework.scheduling.annotation.EnableScheduling;
+
+@EnableScheduling
+@SpringBootApplication(exclude = ElasticsearchDataAutoConfiguration.class)
+public class KcscOpensearchApplication {
+
+  public static void main(String[] args) {
+    SpringApplication.run(KcscOpensearchApplication.class, args);
+  }
+
+}
diff --git a/kcsc-opensearch/src/main/java/com/dbnt/kcscopensearch/config/KcscDatabaseConfig.java b/kcsc-opensearch/src/main/java/com/dbnt/kcscopensearch/config/KcscDatabaseConfig.java
new file mode 100644
index 0000000..ac4e0b5
--- /dev/null
+++ b/kcsc-opensearch/src/main/java/com/dbnt/kcscopensearch/config/KcscDatabaseConfig.java
@@ -0,0 +1,61 @@
+package com.dbnt.kcscopensearch.config;
+
+import org.springframework.boot.context.properties.ConfigurationProperties;
+import org.springframework.boot.jdbc.DataSourceBuilder;
+import org.springframework.context.annotation.Bean;
+import org.springframework.context.annotation.ComponentScan;
+import org.springframework.context.annotation.Configuration;
+import org.springframework.context.annotation.Primary;
+import org.springframework.data.jpa.repository.config.EnableJpaRepositories;
+import org.springframework.orm.jpa.JpaTransactionManager;
+import org.springframework.orm.jpa.LocalContainerEntityManagerFactoryBean;
+import org.springframework.orm.jpa.vendor.HibernateJpaVendorAdapter;
+import org.springframework.transaction.PlatformTransactionManager;
+
+import javax.sql.DataSource;
+import java.util.HashMap;
+
+@Configuration
+@EnableJpaRepositories(
+    basePackages = "com.dbnt.kcscopensearch.kcsc.**.repository",
+    entityManagerFactoryRef = "kcscEntityManager",
+    transactionManagerRef = "kcscTransactionManager"
+)
+@ComponentScan(basePackageClasses = KcscDatabaseConfig.class)
+public class KcscDatabaseConfig {
+
+  @Bean
+  public LocalContainerEntityManagerFactoryBean kcscEntityManager(){
+    LocalContainerEntityManagerFactoryBean em = new LocalContainerEntityManagerFactoryBean();
+    em.setDataSource(kcscDataSource());
+
+    //Entity 패키지 경로
+    em.setPackagesToScan(new String[] { "com.dbnt.kcscopensearch.kcsc.**.model" });
+
+    HibernateJpaVendorAdapter vendorAdapter = new HibernateJpaVendorAdapter();
+    em.setJpaVendorAdapter(vendorAdapter);
+
+    //Hibernate 설정
+    HashMap<String, Object> properties = new HashMap<>();
+    properties.put("hibernate.hbm2ddl.auto", "none");
+    properties.put("hibernate.dialect", "org.hibernate.dialect.PostgreSQLDialect");
+    em.setJpaPropertyMap(properties);
+    return em;
+  }
+
+  @Primary
+  @Bean
+  @ConfigurationProperties(prefix="spring.datasource-kcsc")
+  public DataSource kcscDataSource() {
+    return DataSourceBuilder.create().build();
+  }
+
+  @Primary
+  @Bean
+  public PlatformTransactionManager kcscTransactionManager() {
+    JpaTransactionManager transactionManager = new JpaTransactionManager();
+    transactionManager.setEntityManagerFactory(kcscEntityManager().getObject());
+    return transactionManager;
+  }
+
+}
diff --git a/kcsc-opensearch/src/main/java/com/dbnt/kcscopensearch/config/OpensearchConfig.java b/kcsc-opensearch/src/main/java/com/dbnt/kcscopensearch/config/OpensearchConfig.java
new file mode 100644
index 0000000..1b77b1a
--- /dev/null
+++ b/kcsc-opensearch/src/main/java/com/dbnt/kcscopensearch/config/OpensearchConfig.java
@@ -0,0 +1,43 @@
+package com.dbnt.kcscopensearch.config;
+
+import org.apache.http.conn.ssl.TrustSelfSignedStrategy;
+import org.apache.http.impl.nio.client.HttpAsyncClientBuilder;
+import org.apache.http.ssl.SSLContextBuilder;
+import org.opensearch.client.RestClientBuilder;
+import org.opensearch.spring.boot.autoconfigure.RestClientBuilderCustomizer;
+import org.springframework.context.annotation.Bean;
+import org.springframework.context.annotation.ComponentScan;
+import org.springframework.context.annotation.Configuration;
+import org.springframework.data.elasticsearch.repository.config.EnableElasticsearchRepositories;
+
+import java.security.KeyManagementException;
+import java.security.KeyStoreException;
+import java.security.NoSuchAlgorithmException;
+
+@Configuration
+@EnableElasticsearchRepositories(
+    basePackages = "com.dbnt.kcscopensearch.opensearch.**.repository"
+)
+@ComponentScan(basePackageClasses = OpensearchConfig.class)
+public class OpensearchConfig {
+
+  @Bean
+  RestClientBuilderCustomizer customizer(){
+    return new RestClientBuilderCustomizer() {
+      @Override
+      public void customize(HttpAsyncClientBuilder builder){
+        try {
+          builder.setSSLContext(new SSLContextBuilder()
+              .loadTrustMaterial(null, new TrustSelfSignedStrategy())
+              .build());
+        } catch (final KeyManagementException | NoSuchAlgorithmException | KeyStoreException ex) {
+          throw new RuntimeException("Failed to initialize SSL Context instance", ex);
+        }
+      }
+      @Override
+      public void customize(RestClientBuilder builder) {
+
+      }
+    };
+  }
+}
diff --git a/kcsc-opensearch/src/main/java/com/dbnt/kcscopensearch/kcsc/docView/model/DocContentView.java b/kcsc-opensearch/src/main/java/com/dbnt/kcscopensearch/kcsc/docView/model/DocContentView.java
new file mode 100644
index 0000000..b9a37c5
--- /dev/null
+++ b/kcsc-opensearch/src/main/java/com/dbnt/kcscopensearch/kcsc/docView/model/DocContentView.java
@@ -0,0 +1,30 @@
+package com.dbnt.kcscopensearch.kcsc.docView.model;
+
+import jakarta.persistence.Column;
+import jakarta.persistence.Entity;
+import jakarta.persistence.Id;
+import jakarta.persistence.Table;
+import lombok.Data;
+import lombok.NoArgsConstructor;
+import org.hibernate.annotations.Immutable;
+
+@Data
+@Entity
+@Immutable
+@NoArgsConstructor
+@Table(name = "doc_content")
+public class DocContentView {
+  @Id
+  @Column(name = "content_id")
+  private Integer contentId;
+  @Column(name = "kcsc_cd")
+  private String kcscCd;
+  @Column(name = "doc_nm")
+  private String docNm;
+  @Column(name = "doc_yr")
+  private String docYr;
+  @Column(name = "group_title")
+  private String groupTitle;
+  @Column(name = "table_content")
+  private String tableContent;
+}
diff --git a/kcsc-opensearch/src/main/java/com/dbnt/kcscopensearch/kcsc/docView/model/DocIndexView.java b/kcsc-opensearch/src/main/java/com/dbnt/kcscopensearch/kcsc/docView/model/DocIndexView.java
new file mode 100644
index 0000000..bf902b3
--- /dev/null
+++ b/kcsc-opensearch/src/main/java/com/dbnt/kcscopensearch/kcsc/docView/model/DocIndexView.java
@@ -0,0 +1,28 @@
+package com.dbnt.kcscopensearch.kcsc.docView.model;
+
+import jakarta.persistence.Column;
+import jakarta.persistence.Entity;
+import jakarta.persistence.Id;
+import jakarta.persistence.Table;
+import lombok.Data;
+import lombok.NoArgsConstructor;
+import org.hibernate.annotations.Immutable;
+
+@Data
+@Entity
+@Immutable
+@NoArgsConstructor
+@Table(name = "doc_index")
+public class DocIndexView {
+  @Id
+  @Column(name = "index_id")
+  private Integer indexId;
+  @Column(name = "kcsc_cd")
+  private String kcscCd;
+  @Column(name = "doc_nm")
+  private String docNm;
+  @Column(name = "doc_yr")
+  private String docYr;
+  @Column(name = "group_title")
+  private String groupTitle;
+}
diff --git a/kcsc-opensearch/src/main/java/com/dbnt/kcscopensearch/kcsc/docView/model/DocTitleView.java b/kcsc-opensearch/src/main/java/com/dbnt/kcscopensearch/kcsc/docView/model/DocTitleView.java
new file mode 100644
index 0000000..73329aa
--- /dev/null
+++ b/kcsc-opensearch/src/main/java/com/dbnt/kcscopensearch/kcsc/docView/model/DocTitleView.java
@@ -0,0 +1,22 @@
+package com.dbnt.kcscopensearch.kcsc.docView.model;
+
+import jakarta.persistence.*;
+import lombok.*;
+import org.hibernate.annotations.Immutable;
+
+@Data
+@Entity
+@Immutable
+@NoArgsConstructor
+@Table(name = "doc_title")
+public class DocTitleView {
+  @Id
+  @Column(name = "title_id")
+  private Integer titleId;
+  @Column(name = "kcsc_cd")
+  private String kcscCd;
+  @Column(name = "doc_nm")
+  private String docNm;
+  @Column(name = "doc_yr")
+  private String docYr;
+}
diff --git a/kcsc-opensearch/src/main/java/com/dbnt/kcscopensearch/kcsc/docView/repository/DocContentViewRepository.java b/kcsc-opensearch/src/main/java/com/dbnt/kcscopensearch/kcsc/docView/repository/DocContentViewRepository.java
new file mode 100644
index 0000000..81a8cc4
--- /dev/null
+++ b/kcsc-opensearch/src/main/java/com/dbnt/kcscopensearch/kcsc/docView/repository/DocContentViewRepository.java
@@ -0,0 +1,10 @@
+package com.dbnt.kcscopensearch.kcsc.docView.repository;
+
+import com.dbnt.kcscopensearch.kcsc.docView.model.DocContentView;
+import org.springframework.data.jpa.repository.JpaRepository;
+import org.springframework.stereotype.Repository;
+
+@Repository
+public interface DocContentViewRepository extends JpaRepository<DocContentView, Integer> {
+
+}
diff --git a/kcsc-opensearch/src/main/java/com/dbnt/kcscopensearch/kcsc/docView/repository/DocIndexViewRepository.java b/kcsc-opensearch/src/main/java/com/dbnt/kcscopensearch/kcsc/docView/repository/DocIndexViewRepository.java
new file mode 100644
index 0000000..02029d1
--- /dev/null
+++ b/kcsc-opensearch/src/main/java/com/dbnt/kcscopensearch/kcsc/docView/repository/DocIndexViewRepository.java
@@ -0,0 +1,10 @@
+package com.dbnt.kcscopensearch.kcsc.docView.repository;
+
+import com.dbnt.kcscopensearch.kcsc.docView.model.DocIndexView;
+import org.springframework.data.jpa.repository.JpaRepository;
+import org.springframework.stereotype.Repository;
+
+@Repository
+public interface DocIndexViewRepository extends JpaRepository<DocIndexView, Integer> {
+
+}
diff --git a/kcsc-opensearch/src/main/java/com/dbnt/kcscopensearch/kcsc/docView/repository/DocTitleViewRepository.java b/kcsc-opensearch/src/main/java/com/dbnt/kcscopensearch/kcsc/docView/repository/DocTitleViewRepository.java
new file mode 100644
index 0000000..b3c60f7
--- /dev/null
+++ b/kcsc-opensearch/src/main/java/com/dbnt/kcscopensearch/kcsc/docView/repository/DocTitleViewRepository.java
@@ -0,0 +1,10 @@
+package com.dbnt.kcscopensearch.kcsc.docView.repository;
+
+import com.dbnt.kcscopensearch.kcsc.docView.model.DocTitleView;
+import org.springframework.data.jpa.repository.JpaRepository;
+import org.springframework.stereotype.Repository;
+
+@Repository
+public interface DocTitleViewRepository extends JpaRepository<DocTitleView, Integer> {
+
+}
diff --git a/kcsc-opensearch/src/main/java/com/dbnt/kcscopensearch/kcsc/docView/service/DocViewService.java b/kcsc-opensearch/src/main/java/com/dbnt/kcscopensearch/kcsc/docView/service/DocViewService.java
new file mode 100644
index 0000000..292291c
--- /dev/null
+++ b/kcsc-opensearch/src/main/java/com/dbnt/kcscopensearch/kcsc/docView/service/DocViewService.java
@@ -0,0 +1,42 @@
+package com.dbnt.kcscopensearch.kcsc.docView.service;
+
+import com.dbnt.kcscopensearch.kcsc.docView.model.DocContentView;
+import com.dbnt.kcscopensearch.kcsc.docView.model.DocIndexView;
+import com.dbnt.kcscopensearch.kcsc.docView.model.DocTitleView;
+import com.dbnt.kcscopensearch.kcsc.docView.repository.DocContentViewRepository;
+import com.dbnt.kcscopensearch.kcsc.docView.repository.DocIndexViewRepository;
+import com.dbnt.kcscopensearch.kcsc.docView.repository.DocTitleViewRepository;
+import lombok.RequiredArgsConstructor;
+import org.springframework.stereotype.Service;
+
+import java.util.HashMap;
+import java.util.List;
+import java.util.Map;
+
+@Service
+@RequiredArgsConstructor
+public class DocViewService {
+  private final DocTitleViewRepository titleRepository;
+  private final DocIndexViewRepository indexRepository;
+  private final DocContentViewRepository contentRepository;
+
+  public Map<String, List<?>> selectAllView(){
+    Map<String, List<?>> viewDataMap = new HashMap<>();
+    viewDataMap.put("docTitle", titleRepository.findAll());
+    viewDataMap.put("docIndex", indexRepository.findAll());
+    viewDataMap.put("docContent", contentRepository.findAll());
+    return viewDataMap;
+  }
+
+  public List<DocTitleView> selectAllDocTitle(){
+    return titleRepository.findAll();
+  }
+
+  public List<DocIndexView> selectAllDocIndex(){
+    return indexRepository.findAll();
+  }
+
+  public List<DocContentView> selectAllDocContent(){
+    return contentRepository.findAll();
+  }
+}
diff --git a/kcsc-opensearch/src/main/java/com/dbnt/kcscopensearch/kcsc/tnDocumentGroup/model/TnDocumentGroup.java b/kcsc-opensearch/src/main/java/com/dbnt/kcscopensearch/kcsc/tnDocumentGroup/model/TnDocumentGroup.java
new file mode 100644
index 0000000..f2269d0
--- /dev/null
+++ b/kcsc-opensearch/src/main/java/com/dbnt/kcscopensearch/kcsc/tnDocumentGroup/model/TnDocumentGroup.java
@@ -0,0 +1,61 @@
+package com.dbnt.kcscopensearch.kcsc.tnDocumentGroup.model;
+
+import jakarta.persistence.*;
+import lombok.Getter;
+import lombok.NoArgsConstructor;
+import lombok.Setter;
+import org.hibernate.annotations.DynamicInsert;
+import org.hibernate.annotations.DynamicUpdate;
+import org.springframework.format.annotation.DateTimeFormat;
+
+import java.time.LocalDateTime;
+
+@Getter
+@Setter
+@Entity
+@NoArgsConstructor
+@DynamicInsert
+@DynamicUpdate
+@Table(name = "tn_document_group")
+public class TnDocumentGroup {
+  @Id
+  @GeneratedValue(strategy = GenerationType.IDENTITY)
+  @Column(name = "group_seq")
+  private Integer groupSeq;
+  @Column(name = "group_full_cd")
+  private String groupFullCd;
+  @Column(name = "kcsc_cd")
+  private String kcscCd;
+  @Column(name = "group_cur_cd")
+  private String groupCurCd;
+  @Column(name = "group_nm")
+  private String groupNm;
+  @Column(name = "group_type")
+  private String groupType;
+  @Column(name = "item_cd")
+  private String itemCd;
+  @Column(name = "doc_type")
+  private Integer docType;
+  @Column(name = "doc_level")
+  private Integer docLevel;
+  @Column(name = "doc_order")
+  private Integer docOrder;
+  @Column(name = "parent_group_seq")
+  private Integer parentGroupSeq;
+  @Column(name = "rvsn_remark")
+  private String rvsnRemark;
+  @Column(name = "frst_crt_id")
+  private String frstCrtId;
+  @Column(name = "frst_crt_dt")
+  @DateTimeFormat(pattern = "yyyy-MM-dd HH:mm:ss")
+  private LocalDateTime frstCrtDt;
+  @Column(name = "last_chg_id")
+  private String lastChgId;
+  @Column(name = "last_chg_dt")
+  @DateTimeFormat(pattern = "yyyy-MM-dd HH:mm:ss")
+  private LocalDateTime lastChgDt;
+  @Column(name = "use_yn")
+  private String useYn;
+  @Column(name = "old_seq")
+  private Integer oldSeq;
+}
diff --git a/kcsc-opensearch/src/main/java/com/dbnt/kcscopensearch/kcsc/tnDocumentGroup/repository/TnDocumentGroupRepository.java b/kcsc-opensearch/src/main/java/com/dbnt/kcscopensearch/kcsc/tnDocumentGroup/repository/TnDocumentGroupRepository.java
new file mode 100644
index 0000000..0490058
--- /dev/null
+++ b/kcsc-opensearch/src/main/java/com/dbnt/kcscopensearch/kcsc/tnDocumentGroup/repository/TnDocumentGroupRepository.java
@@ -0,0 +1,16 @@
+package com.dbnt.kcscopensearch.kcsc.tnDocumentGroup.repository;
+
+import com.dbnt.kcscopensearch.kcsc.tnDocumentGroup.model.TnDocumentGroup;
+import org.springframework.data.domain.Pageable;
+import org.springframework.data.jpa.repository.JpaRepository;
+import org.springframework.stereotype.Repository;
+
+import java.util.List;
+
+@Repository
+public interface TnDocumentGroupRepository extends JpaRepository<TnDocumentGroup, Integer> {
+
+  Integer countBy();
+  List<TnDocumentGroup> findByOrderByGroupSeqAsc(Pageable pageable);
+
+}
diff --git a/kcsc-opensearch/src/main/java/com/dbnt/kcscopensearch/kcsc/tnDocumentGroup/service/TnDocumentGroupService.java b/kcsc-opensearch/src/main/java/com/dbnt/kcscopensearch/kcsc/tnDocumentGroup/service/TnDocumentGroupService.java
new file mode 100644
index 0000000..c8da89c
--- /dev/null
+++ b/kcsc-opensearch/src/main/java/com/dbnt/kcscopensearch/kcsc/tnDocumentGroup/service/TnDocumentGroupService.java
@@ -0,0 +1,27 @@
+package com.dbnt.kcscopensearch.kcsc.tnDocumentGroup.service;
+
+import com.dbnt.kcscopensearch.kcsc.tnDocumentGroup.repository.TnDocumentGroupRepository;
+import com.dbnt.kcscopensearch.kcsc.tnDocumentGroup.model.TnDocumentGroup;
+import lombok.RequiredArgsConstructor;
+import org.springframework.stereotype.Service;
+
+import java.util.List;
+
+@Service
+@RequiredArgsConstructor
+public class TnDocumentGroupService {
+  private final TnDocumentGroupRepository tnDocumentGroupRepository;
+
+  public List<TnDocumentGroup> selectAll(){
+    /*List<TnDocumentGroup> documentGroupList = new ArrayList<>();
+    Integer totalCnt = tnDocumentGroupRepository.countBy();
+    Integer pageCnt = 0;
+    while (pageCnt < totalCnt){
+      List<TnDocumentGroup> temp = tnDocumentGroupRepository.findByOrderByGroupSeqAsc(PageRequest.of(pageCnt, pageCnt+100));
+      documentGroupList.addAll(temp);
+      pageCnt += 100;
+    }
+    return documentGroupList;*/
+    return tnDocumentGroupRepository.findAll();
+  }
+}
diff --git a/kcsc-opensearch/src/main/java/com/dbnt/kcscopensearch/opensearch/docSearch/DocSearchController.java b/kcsc-opensearch/src/main/java/com/dbnt/kcscopensearch/opensearch/docSearch/DocSearchController.java
new file mode 100644
index 0000000..65478cc
--- /dev/null
+++ b/kcsc-opensearch/src/main/java/com/dbnt/kcscopensearch/opensearch/docSearch/DocSearchController.java
@@ -0,0 +1,34 @@
+package com.dbnt.kcscopensearch.opensearch.docSearch;
+
+import com.dbnt.kcscopensearch.opensearch.docSearch.model.DocContent;
+import com.dbnt.kcscopensearch.opensearch.docSearch.model.DocIndex;
+import com.dbnt.kcscopensearch.opensearch.docSearch.model.DocTitle;
+import com.dbnt.kcscopensearch.opensearch.docSearch.service.DocSearchService;
+import lombok.RequiredArgsConstructor;
+import org.springframework.http.MediaType;
+import org.springframework.web.bind.annotation.GetMapping;
+import org.springframework.web.bind.annotation.RequestMapping;
+import org.springframework.web.bind.annotation.RequestParam;
+import org.springframework.web.bind.annotation.RestController;
+
+import java.util.List;
+
+@RestController
+@RequiredArgsConstructor
+@RequestMapping("/doc-search")
+public class DocSearchController {
+  private final DocSearchService docSearchService;
+
+  @GetMapping(value="/doc-title", produces = MediaType.APPLICATION_JSON_VALUE)
+  public List<DocTitle> searchTitle (@RequestParam(value="searchText", required = true) String text){
+    return docSearchService.selectDocTitle(text);
+  }
+  @GetMapping(value="/doc-index", produces = MediaType.APPLICATION_JSON_VALUE)
+  public List<DocIndex> searchIndex (@RequestParam(value="searchText", required = true) String text){
+    return docSearchService.selectDocIndex(text);
+  }
+  @GetMapping(value="/doc-content", produces = MediaType.APPLICATION_JSON_VALUE)
+  public List<DocContent> searchContent (@RequestParam(value="searchText", required = true) String text){
+    return docSearchService.selectDocContent(text);
+  }
+}
diff --git a/kcsc-opensearch/src/main/java/com/dbnt/kcscopensearch/opensearch/docSearch/model/DocContent.java b/kcsc-opensearch/src/main/java/com/dbnt/kcscopensearch/opensearch/docSearch/model/DocContent.java
new file mode 100644
index 0000000..2fa74ac
--- /dev/null
+++ b/kcsc-opensearch/src/main/java/com/dbnt/kcscopensearch/opensearch/docSearch/model/DocContent.java
@@ -0,0 +1,39 @@
+package com.dbnt.kcscopensearch.opensearch.docSearch.model;
+
+import com.dbnt.kcscopensearch.kcsc.docView.model.DocContentView;
+import jakarta.persistence.Id;
+import lombok.Getter;
+import lombok.NoArgsConstructor;
+import lombok.Setter;
+import org.springframework.data.elasticsearch.annotations.Document;
+import org.springframework.data.elasticsearch.annotations.Field;
+import org.springframework.data.elasticsearch.annotations.FieldType;
+
+@Getter
+@Setter
+@NoArgsConstructor
+@Document(indexName = "doc_content")
+public class DocContent {
+  @Id
+  private Integer id;
+
+  @Field(type = FieldType.Text, name = "kcsc_cd")
+  private String kcscCd;
+  @Field(type = FieldType.Text, name = "doc_nm")
+  private String docNm;
+  @Field(type = FieldType.Text, name = "doc_yr")
+  private String docYr;
+  @Field(type = FieldType.Text, name = "group_title")
+  private String groupTitle;
+  @Field(type = FieldType.Text, name = "table_content")
+  private String tableContent;
+
+  public DocContent(DocContentView view){
+    this.id = view.getContentId();
+    this.kcscCd = view.getKcscCd();
+    this.docNm = view.getDocNm();
+    this.docYr = view.getDocYr();
+    this.groupTitle = view.getGroupTitle();
+    this.tableContent = view.getTableContent();
+  }
+}
diff --git a/kcsc-opensearch/src/main/java/com/dbnt/kcscopensearch/opensearch/docSearch/model/DocIndex.java b/kcsc-opensearch/src/main/java/com/dbnt/kcscopensearch/opensearch/docSearch/model/DocIndex.java
new file mode 100644
index 0000000..284e3a9
--- /dev/null
+++ b/kcsc-opensearch/src/main/java/com/dbnt/kcscopensearch/opensearch/docSearch/model/DocIndex.java
@@ -0,0 +1,36 @@
+package com.dbnt.kcscopensearch.opensearch.docSearch.model;
+
+import com.dbnt.kcscopensearch.kcsc.docView.model.DocIndexView;
+import jakarta.persistence.Id;
+import lombok.Getter;
+import lombok.NoArgsConstructor;
+import lombok.Setter;
+import org.springframework.data.elasticsearch.annotations.Document;
+import org.springframework.data.elasticsearch.annotations.Field;
+import org.springframework.data.elasticsearch.annotations.FieldType;
+
+@Getter
+@Setter
+@NoArgsConstructor
+@Document(indexName = "doc_index")
+public class DocIndex {
+  @Id
+  private Integer id;
+
+  @Field(type = FieldType.Text, name = "kcsc_cd")
+  private String kcscCd;
+  @Field(type = FieldType.Text, name = "doc_nm")
+  private String docNm;
+  @Field(type = FieldType.Text, name = "doc_yr")
+  private String docYr;
+  @Field(type = FieldType.Text, name = "group_title")
+  private String groupTitle;
+
+  public DocIndex(DocIndexView view){
+    this.id = view.getIndexId();
+    this.kcscCd = view.getKcscCd();
+    this.docNm = view.getDocNm();
+    this.docYr = view.getDocYr();
+    this.groupTitle = view.getGroupTitle();
+  }
+}
diff --git a/kcsc-opensearch/src/main/java/com/dbnt/kcscopensearch/opensearch/docSearch/model/DocTitle.java b/kcsc-opensearch/src/main/java/com/dbnt/kcscopensearch/opensearch/docSearch/model/DocTitle.java
new file mode 100644
index 0000000..c7fc96f
--- /dev/null
+++ b/kcsc-opensearch/src/main/java/com/dbnt/kcscopensearch/opensearch/docSearch/model/DocTitle.java
@@ -0,0 +1,33 @@
+package com.dbnt.kcscopensearch.opensearch.docSearch.model;
+
+import com.dbnt.kcscopensearch.kcsc.docView.model.DocTitleView;
+import jakarta.persistence.*;
+import lombok.Getter;
+import lombok.NoArgsConstructor;
+import lombok.Setter;
+import org.springframework.data.elasticsearch.annotations.Document;
+import org.springframework.data.elasticsearch.annotations.Field;
+import org.springframework.data.elasticsearch.annotations.FieldType;
+
+@Getter
+@Setter
+@NoArgsConstructor
+@Document(indexName = "doc_title")
+public class DocTitle {
+  @Id
+  private Integer id;
+
+  @Field(type = FieldType.Text, name = "kcsc_cd")
+  private String kcscCd;
+  @Field(type = FieldType.Text, name = "doc_nm")
+  private String docNm;
+  @Field(type = FieldType.Text, name = "doc_yr")
+  private String docYr;
+
+  public DocTitle(DocTitleView view){
+    this.id= view.getTitleId();
+    this.kcscCd = view.getKcscCd();
+    this.docNm = view.getDocNm();
+    this.docYr = view.getDocYr();
+  }
+}
diff --git a/kcsc-opensearch/src/main/java/com/dbnt/kcscopensearch/opensearch/docSearch/repository/DocContentRepository.java b/kcsc-opensearch/src/main/java/com/dbnt/kcscopensearch/opensearch/docSearch/repository/DocContentRepository.java
new file mode 100644
index 0000000..ef34138
--- /dev/null
+++ b/kcsc-opensearch/src/main/java/com/dbnt/kcscopensearch/opensearch/docSearch/repository/DocContentRepository.java
@@ -0,0 +1,13 @@
+package com.dbnt.kcscopensearch.opensearch.docSearch.repository;
+
+import com.dbnt.kcscopensearch.opensearch.docSearch.model.DocContent;
+import org.springframework.data.elasticsearch.repository.ElasticsearchRepository;
+import org.springframework.stereotype.Repository;
+
+import java.util.List;
+
+@Repository
+public interface DocContentRepository extends ElasticsearchRepository<DocContent, Integer> {
+
+  List<DocContent> findByTableContentContains(String text);
+}
diff --git a/kcsc-opensearch/src/main/java/com/dbnt/kcscopensearch/opensearch/docSearch/repository/DocIndexRepository.java b/kcsc-opensearch/src/main/java/com/dbnt/kcscopensearch/opensearch/docSearch/repository/DocIndexRepository.java
new file mode 100644
index 0000000..b180047
--- /dev/null
+++ b/kcsc-opensearch/src/main/java/com/dbnt/kcscopensearch/opensearch/docSearch/repository/DocIndexRepository.java
@@ -0,0 +1,13 @@
+package com.dbnt.kcscopensearch.opensearch.docSearch.repository;
+
+import com.dbnt.kcscopensearch.opensearch.docSearch.model.DocIndex;
+import org.springframework.data.elasticsearch.repository.ElasticsearchRepository;
+import org.springframework.stereotype.Repository;
+
+import java.util.List;
+
+@Repository
+public interface DocIndexRepository extends ElasticsearchRepository<DocIndex, Integer> {
+
+  List<DocIndex> findByGroupTitleContains(String text);
+}
diff --git a/kcsc-opensearch/src/main/java/com/dbnt/kcscopensearch/opensearch/docSearch/repository/DocTitleRepository.java b/kcsc-opensearch/src/main/java/com/dbnt/kcscopensearch/opensearch/docSearch/repository/DocTitleRepository.java
new file mode 100644
index 0000000..07c68af
--- /dev/null
+++ b/kcsc-opensearch/src/main/java/com/dbnt/kcscopensearch/opensearch/docSearch/repository/DocTitleRepository.java
@@ -0,0 +1,13 @@
+package com.dbnt.kcscopensearch.opensearch.docSearch.repository;
+
+import com.dbnt.kcscopensearch.opensearch.docSearch.model.DocTitle;
+import org.springframework.data.elasticsearch.repository.ElasticsearchRepository;
+import org.springframework.stereotype.Repository;
+
+import java.util.List;
+
+@Repository
+public interface DocTitleRepository extends ElasticsearchRepository<DocTitle, Integer> {
+
+  List<DocTitle> findByDocNmContains(String text);
+}
diff --git a/kcsc-opensearch/src/main/java/com/dbnt/kcscopensearch/opensearch/docSearch/service/DocSearchService.java b/kcsc-opensearch/src/main/java/com/dbnt/kcscopensearch/opensearch/docSearch/service/DocSearchService.java
new file mode 100644
index 0000000..82e53a4
--- /dev/null
+++ b/kcsc-opensearch/src/main/java/com/dbnt/kcscopensearch/opensearch/docSearch/service/DocSearchService.java
@@ -0,0 +1,136 @@
+package com.dbnt.kcscopensearch.opensearch.docSearch.service;
+
+import com.dbnt.kcscopensearch.opensearch.docSearch.model.DocContent;
+import com.dbnt.kcscopensearch.opensearch.docSearch.model.DocIndex;
+import com.dbnt.kcscopensearch.opensearch.docSearch.model.DocTitle;
+import com.dbnt.kcscopensearch.opensearch.docSearch.repository.DocContentRepository;
+import com.dbnt.kcscopensearch.opensearch.docSearch.repository.DocIndexRepository;
+import com.dbnt.kcscopensearch.opensearch.docSearch.repository.DocTitleRepository;
+import lombok.RequiredArgsConstructor;
+import org.slf4j.LoggerFactory;
+import org.slf4j.Logger;
+import org.springframework.stereotype.Service;
+import org.springframework.transaction.annotation.Transactional;
+
+import java.util.Iterator;
+import java.util.List;
+import java.util.Map;
+
+@Service
+@RequiredArgsConstructor
+public class DocSearchService {
+
+  private final DocTitleRepository titleRepository;
+  private final DocIndexRepository indexRepository;
+  private final DocContentRepository contentRepository;
+  private final Logger log = LoggerFactory.getLogger(this.getClass().getSimpleName());
+
+  @Transactional
+  public void save(Map<String, List<?>> indexingDataMap){
+    Iterator<String> keys = indexingDataMap.keySet().iterator();
+    while(keys.hasNext()) {
+      int i = 0;
+      String key = keys.next();
+      List<?> dataList = indexingDataMap.get(key);
+      if (!dataList.isEmpty()) {
+        switch (key) {
+          case "docTitle":
+            List<DocTitle> titleList = (List<DocTitle>) dataList;
+            while (i<=titleList.size()){
+              int endNum = i+1000;
+              if(endNum>titleList.size()){
+                endNum = titleList.size();
+              }
+              titleRepository.saveAll(titleList.subList(i, endNum));
+              i+=1000;
+            }
+            break;
+          case "docIndex":
+            List<DocIndex> indexList = (List<DocIndex>) dataList;
+            while (i<=indexList.size()){
+              int endNum = i+1000;
+              if(endNum>indexList.size()){
+                endNum = indexList.size();
+              }
+              indexRepository.saveAll(indexList.subList(i, endNum));
+              i+=1000;
+            }
+            break;
+          case "docContent":
+            List<DocContent> contentList = (List<DocContent>) dataList;
+            while (i<=contentList.size()){
+              int endNum = i+1000;
+              if(endNum>contentList.size()){
+                endNum = contentList.size();
+              }
+              contentRepository.saveAll(contentList.subList(i, endNum));
+              i+=1000;
+            }
+            break;
+        }
+      }
+    }
+    System.out.println("indexing end");
+  }
+
+
+  @Transactional
+  public void saveDocTitle(List<DocTitle> titleList) {
+    log.info("title indexing start listSize: "+titleList.size());
+    int i = 0;
+    while (i<=titleList.size()){
+      int endNum = i+1000;
+      if(endNum>titleList.size()){
+        endNum = titleList.size();
+      }
+      log.info("startNUm: "+i+" , endNum: "+endNum);
+      titleRepository.saveAll(titleList.subList(i, endNum));
+      i+=1000;
+    }
+    log.info("titleIndexing end");
+  }
+
+  @Transactional
+  public void saveDocIndex(List<DocIndex> indexList) {
+    log.info("index indexing start listSize: "+indexList.size());
+    int i = 0;
+    while (i<=indexList.size()){
+      int endNum = i+1000;
+      if(endNum>indexList.size()){
+        endNum = indexList.size();
+      }
+      log.info("startNUm: "+i+" , endNum: "+endNum);
+      indexRepository.saveAll(indexList.subList(i, endNum));
+      i+=1000;
+    }
+    log.info("indexIndexing end");
+  }
+
+  @Transactional
+  public void saveDocContent(List<DocContent> contentList) {
+    log.info("content indexing start listSize: "+contentList.size());
+    int i = 0;
+    while (i<=contentList.size()){
+      int endNum = i+1000;
+      if(endNum>contentList.size()){
+        endNum = contentList.size();
+      }
+      log.info("startNUm: "+i+" , endNum: "+endNum);
+      contentRepository.saveAll(contentList.subList(i, endNum));
+      i+=1000;
+    }
+    log.info("contentIndexing end");
+  }
+
+  public List<DocTitle> selectDocTitle(String text) {
+    return titleRepository.findByDocNmContains(text);
+  }
+
+  public List<DocIndex> selectDocIndex(String text){
+    return indexRepository.findByGroupTitleContains(text);
+  }
+
+  public List<DocContent> selectDocContent(String text){
+    return contentRepository.findByTableContentContains(text);
+  }
+}
diff --git a/kcsc-opensearch/src/main/java/com/dbnt/kcscopensearch/opensearch/documentGroup/DocumentGroupController.java b/kcsc-opensearch/src/main/java/com/dbnt/kcscopensearch/opensearch/documentGroup/DocumentGroupController.java
new file mode 100644
index 0000000..5eafee4
--- /dev/null
+++ b/kcsc-opensearch/src/main/java/com/dbnt/kcscopensearch/opensearch/documentGroup/DocumentGroupController.java
@@ -0,0 +1,26 @@
+package com.dbnt.kcscopensearch.opensearch.documentGroup;
+
+import com.dbnt.kcscopensearch.opensearch.documentGroup.model.DocumentGroup;
+import com.dbnt.kcscopensearch.opensearch.documentGroup.service.DocumentGroupService;
+import lombok.RequiredArgsConstructor;
+import org.springframework.http.MediaType;
+import org.springframework.web.bind.annotation.GetMapping;
+import org.springframework.web.bind.annotation.RequestMapping;
+import org.springframework.web.bind.annotation.RequestParam;
+import org.springframework.web.bind.annotation.RestController;
+
+import java.util.List;
+
+@RestController
+@RequiredArgsConstructor
+@RequestMapping("/documentGroup")
+public class DocumentGroupController {
+
+  private final DocumentGroupService documentGroupService;
+
+  /*@GetMapping(value = "/search", produces = MediaType.APPLICATION_JSON_VALUE)
+  public List<DocumentGroup> search(@RequestParam(value="groupNm", required = true) String groupNm){
+    return documentGroupService.search(groupNm);
+  }*/
+
+}
diff --git a/kcsc-opensearch/src/main/java/com/dbnt/kcscopensearch/opensearch/documentGroup/model/DocumentGroup.java b/kcsc-opensearch/src/main/java/com/dbnt/kcscopensearch/opensearch/documentGroup/model/DocumentGroup.java
new file mode 100644
index 0000000..86ad44d
--- /dev/null
+++ b/kcsc-opensearch/src/main/java/com/dbnt/kcscopensearch/opensearch/documentGroup/model/DocumentGroup.java
@@ -0,0 +1,87 @@
+package com.dbnt.kcscopensearch.opensearch.documentGroup.model;
+
+import com.dbnt.kcscopensearch.kcsc.tnDocumentGroup.model.TnDocumentGroup;
+import com.fasterxml.jackson.annotation.JsonFormat;
+import lombok.Getter;
+import lombok.NoArgsConstructor;
+import lombok.Setter;
+import org.springframework.data.annotation.Id;
+import org.springframework.data.elasticsearch.annotations.Document;
+import org.springframework.data.elasticsearch.annotations.Field;
+import org.springframework.data.elasticsearch.annotations.FieldType;
+import org.springframework.format.annotation.DateTimeFormat;
+
+import java.time.LocalDateTime;
+
+@Getter
+@Setter
+@NoArgsConstructor
+@Document(indexName = "document_group")
+public class DocumentGroup {
+
+  @Id
+  private Integer id;
+
+  @Field(type = FieldType.Integer, name = "group_seq")
+  private Integer groupSeq;
+  @Field(type = FieldType.Text, name = "group_full_cd")
+  private String groupFullCd;
+  @Field(type = FieldType.Text, name = "kcsc_cd")
+  private String kcscCd;
+  @Field(type = FieldType.Text, name = "group_cur_cd")
+  private String groupCurCd;
+  @Field(type = FieldType.Text, name = "group_nm")
+  private String groupNm;
+  @Field(type = FieldType.Text, name = "group_type")
+  private String groupType;
+  @Field(type = FieldType.Text, name = "item_cd")
+  private String itemCd;
+  @Field(type = FieldType.Integer, name = "doc_type")
+  private Integer docType;
+  @Field(type = FieldType.Integer, name = "doc_level")
+  private Integer docLevel;
+  @Field(type = FieldType.Integer, name = "doc_order")
+  private Integer docOrder;
+  @Field(type = FieldType.Integer, name = "parent_group_seq")
+  private Integer parentGroupSeq;
+  @Field(type = FieldType.Text, name = "rvsn_remark")
+  private String rvsnRemark;
+  @Field(type = FieldType.Text, name = "frst_crt_id")
+  private String frstCrtId;
+  @Field(type = FieldType.Date, name = "frst_crt_dt")
+  @DateTimeFormat(pattern = "yyyy-MM-dd'T'HH:mm:ss.SSS")
+  @JsonFormat(shape = JsonFormat.Shape.STRING, pattern = "yyyy-MM-dd'T'HH:mm:ss.SSS", timezone = "Asia/Seoul")
+  private LocalDateTime frstCrtDt;
+  @Field(type = FieldType.Text, name = "last_chg_id")
+  private String lastChgId;
+  @Field(type = FieldType.Date, name = "last_chg_dt")
+  @DateTimeFormat(pattern = "yyyy-MM-dd'T'HH:mm:ss.SSS")
+  @JsonFormat(shape = JsonFormat.Shape.STRING, pattern = "yyyy-MM-dd'T'HH:mm:ss.SSS", timezone = "Asia/Seoul")
+  private LocalDateTime lastChgDt;
+  @Field(type = FieldType.Text, name = "use_yn")
+  private String useYn;
+  @Field(type = FieldType.Integer, name = "old_seq")
+  private Integer oldSeq;
+
+  public DocumentGroup(TnDocumentGroup documentGroup){
+    this.id = documentGroup.getGroupSeq();
+    this.groupSeq = documentGroup.getGroupSeq();
+    this.groupFullCd = documentGroup.getGroupCurCd();
+    this.kcscCd = documentGroup.getKcscCd();
+    this.groupCurCd = documentGroup.getGroupCurCd();
+    this.groupNm = documentGroup.getGroupNm();
+    this.groupType = documentGroup.getGroupNm();
+    this.itemCd = documentGroup.getItemCd();
+    this.docType = documentGroup.getDocType();
+    this.docLevel = documentGroup.getDocLevel();
+    this.docOrder = documentGroup.getDocOrder();
+    this.parentGroupSeq = documentGroup.getParentGroupSeq();
+    this.rvsnRemark = documentGroup.getRvsnRemark();
+    this.frstCrtId = documentGroup.getFrstCrtId();
+    this.frstCrtDt = documentGroup.getFrstCrtDt();
+    this.lastChgId = documentGroup.getLastChgId();
+    this.lastChgDt = documentGroup.getLastChgDt();
+    this.useYn = documentGroup.getUseYn();
+    this.oldSeq = documentGroup.getOldSeq();
+  }
+}
diff --git a/kcsc-opensearch/src/main/java/com/dbnt/kcscopensearch/opensearch/documentGroup/repository/DocumentGroupRepository.java b/kcsc-opensearch/src/main/java/com/dbnt/kcscopensearch/opensearch/documentGroup/repository/DocumentGroupRepository.java
new file mode 100644
index 0000000..b45ff30
--- /dev/null
+++ b/kcsc-opensearch/src/main/java/com/dbnt/kcscopensearch/opensearch/documentGroup/repository/DocumentGroupRepository.java
@@ -0,0 +1,13 @@
+package com.dbnt.kcscopensearch.opensearch.documentGroup.repository;
+
+import com.dbnt.kcscopensearch.opensearch.documentGroup.model.DocumentGroup;
+import org.springframework.data.elasticsearch.repository.ElasticsearchRepository;
+import org.springframework.stereotype.Repository;
+
+import java.util.List;
+
+@Repository
+public interface DocumentGroupRepository extends ElasticsearchRepository<DocumentGroup, Integer> {
+  List<DocumentGroup> findByGroupNmLike(String groupNm);
+
+}
diff --git a/kcsc-opensearch/src/main/java/com/dbnt/kcscopensearch/opensearch/documentGroup/service/DocumentGroupService.java b/kcsc-opensearch/src/main/java/com/dbnt/kcscopensearch/opensearch/documentGroup/service/DocumentGroupService.java
new file mode 100644
index 0000000..083cd79
--- /dev/null
+++ b/kcsc-opensearch/src/main/java/com/dbnt/kcscopensearch/opensearch/documentGroup/service/DocumentGroupService.java
@@ -0,0 +1,25 @@
+package com.dbnt.kcscopensearch.opensearch.documentGroup.service;
+
+import com.dbnt.kcscopensearch.opensearch.documentGroup.model.DocumentGroup;
+import com.dbnt.kcscopensearch.opensearch.documentGroup.repository.DocumentGroupRepository;
+import lombok.RequiredArgsConstructor;
+import org.springframework.stereotype.Service;
+import org.springframework.transaction.annotation.Transactional;
+
+import java.util.List;
+
+@Service
+@RequiredArgsConstructor
+public class DocumentGroupService {
+
+  private final DocumentGroupRepository documentGroupRepository;
+
+  public List<DocumentGroup> search(String groupNm){
+    return documentGroupRepository.findByGroupNmLike(groupNm);
+  }
+
+  @Transactional
+  public void save(List<DocumentGroup> documentGroupList) {
+    documentGroupRepository.saveAll(documentGroupList);
+  }
+}
diff --git a/kcsc-opensearch/src/main/java/com/dbnt/kcscopensearch/scheduler/IndexingScheduler.java b/kcsc-opensearch/src/main/java/com/dbnt/kcscopensearch/scheduler/IndexingScheduler.java
new file mode 100644
index 0000000..7011534
--- /dev/null
+++ b/kcsc-opensearch/src/main/java/com/dbnt/kcscopensearch/scheduler/IndexingScheduler.java
@@ -0,0 +1,91 @@
+package com.dbnt.kcscopensearch.scheduler;
+
+import com.dbnt.kcscopensearch.kcsc.docView.model.DocContentView;
+import com.dbnt.kcscopensearch.kcsc.docView.model.DocIndexView;
+import com.dbnt.kcscopensearch.kcsc.docView.model.DocTitleView;
+import com.dbnt.kcscopensearch.opensearch.docSearch.model.DocContent;
+import com.dbnt.kcscopensearch.opensearch.docSearch.model.DocIndex;
+import com.dbnt.kcscopensearch.opensearch.docSearch.model.DocTitle;
+import com.dbnt.kcscopensearch.opensearch.docSearch.service.DocSearchService;
+import com.dbnt.kcscopensearch.kcsc.docView.service.DocViewService;
+import lombok.RequiredArgsConstructor;
+import org.springframework.scheduling.annotation.Scheduled;
+import org.springframework.stereotype.Component;
+
+import java.util.*;
+
+@Component
+@RequiredArgsConstructor
+public class IndexingScheduler {
+
+  private final DocViewService docViewService;
+  private final DocSearchService docSearchService;
+
+  @Scheduled(cron = "40 18 23 * * *")
+  public void viewIndexing(){
+    Map<String, List<?>> viewDataMap = docViewService.selectAllView();
+    Map<String, List<?>> indexingDataMap = new HashMap<>();
+    Iterator<String> keys = viewDataMap.keySet().iterator();
+    while(keys.hasNext()){
+      String key = keys.next();
+      List<?> viewDataList = viewDataMap.get(key);
+      if(!viewDataList.isEmpty()){
+        switch (key){
+          case "docTitle":
+            List<DocTitle> titleList = new ArrayList<>();
+            for(Object obj: viewDataList){
+              titleList.add(new DocTitle((DocTitleView) obj));
+            }
+            indexingDataMap.put("docTitle", titleList);
+            break;
+          case "docIndex":
+            List<DocIndex> indexList = new ArrayList<>();
+            for(Object obj: viewDataList){
+              indexList.add(new DocIndex((DocIndexView) obj));
+            }
+            indexingDataMap.put("docIndex", indexList);
+            break;
+          case "docContent":
+            List<DocContent> contentList = new ArrayList<>();
+            for(Object obj: viewDataList){
+              contentList.add(new DocContent((DocContentView) obj));
+            }
+            indexingDataMap.put("docContent", contentList);
+            break;
+        }
+      }
+    }
+
+    docSearchService.save(indexingDataMap);
+
+    //docSearchService.save(indexingDataMap);
+  }
+
+  @Scheduled(cron = "40 20 23 * * *")
+  public void titleIndexing(){
+    List<DocTitleView> titleViewList = docViewService.selectAllDocTitle();
+    List<DocTitle> titleList = new ArrayList<>();
+    for(DocTitleView view: titleViewList){
+      titleList.add(new DocTitle(view));
+    }
+    docSearchService.saveDocTitle(titleList);
+  }
+  @Scheduled(cron = "40 21 23 * * *")
+  public void indexIndexing(){
+    List<DocIndexView> indexViewList = docViewService.selectAllDocIndex();
+    List<DocIndex> indexList = new ArrayList<>();
+    for(DocIndexView view: indexViewList){
+      indexList.add(new DocIndex(view));
+    }
+    docSearchService.saveDocIndex(indexList);
+  }
+  @Scheduled(cron = "40 25 23 * * *")
+  public void contentIndexing(){
+    List<DocContentView> contentViewList = docViewService.selectAllDocContent();
+    List<DocContent> contentList = new ArrayList<>();
+    for(DocContentView view: contentViewList){
+      contentList.add(new DocContent(view));
+    }
+    docSearchService.saveDocContent(contentList);
+  }
+}
diff --git a/kcsc-opensearch/src/main/resources/application.properties b/kcsc-opensearch/src/main/resources/application.properties
new file mode 100644
index 0000000..ce0d122
--- /dev/null
+++ b/kcsc-opensearch/src/main/resources/application.properties
@@ -0,0 +1,16 @@
+spring.application.name=kcsc-opensearch
+
+opensearch.uris=https://localhost:9200
+opensearch.username=admin
+opensearch.password=kpbP7ECsaTlgvfmaGNBtORH75QHf7TmJhHZdW7Z7
+
+spring.datasource-kcsc.driverClassName=org.postgresql.Driver
+spring.datasource-kcsc.jdbcUrl=jdbc:postgresql://118.219.150.34:50503/kcsc
+spring.datasource-kcsc.username=dbnt0031
+spring.datasource-kcsc.password=dbnt0928!
+
+spring.jpa.show-sql=true
+spring.jpa.generate-ddl=false
+spring.jpa.hibernate.naming.physical-strategy = org.hibernate.boot.model.naming.PhysicalNamingStrategyStandardImpl
+
+spring.jackson.serialization.INDENT_OUTPUT=true
\ No newline at end of file