diff --git a/.github/workflows/gradle.yml b/.github/workflows/gradle.yml
index e38ccf5c..81187f4a 100644
--- a/.github/workflows/gradle.yml
+++ b/.github/workflows/gradle.yml
@@ -88,7 +88,22 @@ jobs:
       with:
         distribution: 'temurin'
         java-version: '17'
-    # (5) Gradle build (Test 제외)
+    # (4.5) application.yml file 설정
+    - name: Set yml file
+      uses: microsoft/variable-substitution@v1
+      with:
+        files: ${{ env.RESOURCE_PATH }}
+      env:
+        spring.datasource.url: ${{ secrets.RDS_HOST }}
+        spring.datasource.username: ${{ secrets.RDS_USERNAME }}
+        spring.datasource.password: ${{ secrets.RDS_PASSWORD }}
+        secret.jwt-secret-key: ${{secrets.JWT_SECRET_KEY}}
+        secret.jwt-login-secret-key: ${{secrets.JWT_SECRET_KEY_1}}
+        secret.jwt-user-secret-key: ${{secrets.JWT_SECRET_KEY_2}}
+        secret.jwt-expired-in: ${{secrets.JWT_EXPIRED_IN}}
+        spring.datasource.driver-class-name: com.mysql.cj.jdbc.Driver
+
+      # (5) Gradle build (Test 제외)
     - name: Build with Gradle
       uses: gradle/gradle-build-action@0d13054264b0bb894ded474f08ebb30921341cee
       with:
diff --git a/.gitignore b/.gitignore
index c2065bc2..bbbc10b5 100644
--- a/.gitignore
+++ b/.gitignore
@@ -35,3 +35,7 @@ out/
 
 ### VS Code ###
 .vscode/
+
+### application-local.yml ###
+src/main/resource/application-local.yml
+/**/application-local.yml
\ No newline at end of file
diff --git a/build.gradle b/build.gradle
index 9041d148..e9ec35e4 100644
--- a/build.gradle
+++ b/build.gradle
@@ -29,7 +29,7 @@ dependencies {
 	implementation 'org.springframework.boot:spring-boot-starter-web'
 	compileOnly 'org.projectlombok:lombok'
 	developmentOnly 'org.springframework.boot:spring-boot-devtools'
-//	runtimeOnly 'com.mysql:mysql-connector-j'
+	runtimeOnly 'com.mysql:mysql-connector-j'
 	annotationProcessor 'org.projectlombok:lombok'
 	testImplementation 'org.springframework.boot:spring-boot-starter-test'
 	testRuntimeOnly 'org.junit.platform:junit-platform-launcher'
diff --git a/src/main/resources/application.yml b/src/main/resources/application.yml
index c7b96c06..964ed211 100644
--- a/src/main/resources/application.yml
+++ b/src/main/resources/application.yml
@@ -1,27 +1,93 @@
+spring:
+  profiles:
+    active: ${SPRING_PROFILES_ACTIVE:dev}
+    group:
+      "local": "localRDB, localMongoDB, localJPA, localPort, localSecret, web-mvc"
+      "dev": "devRDB, devMongoDB, devPort, devJPA, devSecret, web-mvc"
+      "prod": "devRDB, devMongoDB, devPort, prodJPA, devSecret, web-mvc"
+---
+spring:
+  config:
+    activate:
+      on-profile: "devPort"
 
 server:
     port: 8080
-
+---
 spring:
+  config:
+    activate:
+      on-profile: "devRDB"
+
   datasource:
-      url:  ${DATASOURCE_URL_LOCAL}
+      url:  ${DATASOURCE_URL}
       username: ${DATASOURCE_USERNAME}
       password: ${DATASOURCE_PASSWORD}
-      driver-class-name: ${DATASOURCE_DRIVER}
+      driver-class-name: jdbc:mysql://com.mysql.cj.jdbc.Driver
+logging:
+  level:
+    org.hibernate.sql: debug
+---
+spring:
+  config:
+    activate:
+      on-profile: "devMongoDB"
+  data:
+    mongodb:
+      uri: mongodb://${MONGO_USERNAME}:${MONGO_PASSWORD}@${MONGO_HOST}:${MONGO_PORT}/${MONGO_DB}
+
+---
+spring:
+  config:
+    activate:
+      on-profile: "devJPA"
 
   jpa:
     hibernate:
-          ddl-auto: create          # create : 존재하는 table을 전부 drop했다가 다시 생성 -> 테스트용
+          ddl-auto: validate         
+
     properties:
       hibernate:
         format_sql: true
         show_sql: true
+---
+spring:
+  config:
+    activate:
+      on-profile: "prodJPA"
+
+  jpa:
+    hibernate:
+          ddl-auto: none      
+    properties:
+      hibernate:
+        show_sql: false
+---
+spring:
+  config:
+    activate:
+      on-profile: "devSecret"
 
 secret:
-  jwt-login-secret-key: ${JWT_LOGIN_SECRET_KEY}
-  jwt-user-space-secret-key: ${JWT_USER_SPACE_SECRET_KEY}
-  jwt-expired-in: ${JWT_EXPIRED_IN}
+  jwt-secret-key: ${JWT_SECRET_KEY}
+  jwt-login-secret-key: ${JWT_SECRET_KEY_LOGIN}
+  jwt-user-secret-key: ${JWT_SECRET_KEY_USER}
+  jwt-expired-in: ${JWT_EXPIRED_IN:3600000}
+---
+
+spring:
+  config:
+    activate:
+      on-profile: "web-mvc"
+
+  mvc:
+    throw-exception-if-no-handler-found: true
+
+  web:
+    resources:
+      add-mappings: false
+
+  messages:
+    basename: errors
+
 
-logging:
-  level:
-    org.hibernate.sql: debug