diff --git a/.github/workflows/backend-ci-cd.yml b/.github/workflows/backend-ci-cd.yml
index 76c5c60..fbb4ded 100644
--- a/.github/workflows/backend-ci-cd.yml
+++ b/.github/workflows/backend-ci-cd.yml
@@ -9,14 +9,18 @@ on:
       - 'HalfFifty_BE/**'
 
 jobs:
+  # 1. 테스트 및 빌드
   test:
     name: Test and Build Backend
     runs-on: ubuntu-latest
 
     steps:
+
+      # 1.1 코드 체크아웃
       - name: Checkout code
         uses: actions/checkout@v3
 
+      # 1.2 JDK 17 설치
       - name: Set up JDK 17
         uses: actions/setup-java@v3
         with:
@@ -40,39 +44,40 @@ jobs:
 
   deploy:
     name: Deploy Backend
-    needs: test
-    if: github.ref == 'refs/heads/main'
+    needs: test  # 빌드/테스트가 성공해야 실행
+    if: github.ref == 'refs/heads/main'   # main 브랜치에서만 실행
     runs-on: ubuntu-latest
 
     steps:
+      # 2.1 코드 체크아웃
       - name: Checkout code
         uses: actions/checkout@v3
 
+      # 2.2 JDK 17 설치
       - name: Set up JDK 17
         uses: actions/setup-java@v3
         with:
           java-version: '17'
           distribution: 'temurin'
 
-      - name: Build Docker Image
-        working-directory: HalfFifty_BE
-        run: docker build -t half-fifty:latest .
-
-      - name: Deploy to EC2
-        uses: appleboy/ssh-action@v0.1.2
+      # 2.3 빌드된 JAR 파일을 EC2로 전송
+      - name: Upload JAR to EC2
+        uses: appleboy/scp-action@v0.1.2
         with:
           host: ${{ secrets.AWS_IP }}
           username: ${{ secrets.AWS_USER }}
           key: ${{ secrets.AWS_KEY }}
-          script: |
-            docker stop half-fifty || true
-            docker rm half-fifty || true
-            docker run -d -p 80:8080 --name half-fifty half-fifty:latest
+          source: ./HalfFifty_BE/build/libs/HalfFifty_BE-0.0.1-SNAPSHOT.jar
+          target: ~/HalfFifty_BE-0.0.1-SNAPSHOT.jar
 
-      - name: Verify Container Status
+      # 2.4 EC2에서 Docker Compose로 배포 실행
+      - name: Deploy to EC2 using Docker Compose
         uses: appleboy/ssh-action@v0.1.2
         with:
           host: ${{ secrets.AWS_IP }}
           username: ${{ secrets.AWS_USER }}
           key: ${{ secrets.AWS_KEY }}
-          script: docker ps | grep half-fifty
+          script: |
+            cd ~
+            docker-compose down || true
+            docker-compose up -d --build
diff --git a/HalfFifty_BE/src/main/java/HalfFifty/HalfFifty_BE/HealthCheck.java b/HalfFifty_BE/src/main/java/HalfFifty/HalfFifty_BE/HealthCheck.java
index 69fdd02..1567c13 100644
--- a/HalfFifty_BE/src/main/java/HalfFifty/HalfFifty_BE/HealthCheck.java
+++ b/HalfFifty_BE/src/main/java/HalfFifty/HalfFifty_BE/HealthCheck.java
@@ -8,6 +8,6 @@ public class HealthCheck {
 
     @GetMapping("/")
     public String health() {
-        return "server on!";
+        return "server on!!!";
     }
 }