diff --git a/.github/workflows/docker-publish.yml b/.github/workflows/docker-publish.yml
new file mode 100644
index 0000000..ff10d01
--- /dev/null
+++ b/.github/workflows/docker-publish.yml
@@ -0,0 +1,38 @@
+name: CI/CD - Docker Image from DECS Branch
+
+on:
+  pull_request:
+    types: [closed]
+    branches: [ "develop" ]
+
+jobs:
+  build-and-push:
+    if: github.event.pull_request.merged == true
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@v4
+
+      - name: Log in to Docker Hub
+        uses: docker/login-action@v3
+        with:
+          username: ${{ secrets.DOCKER_USERNAME }}
+          password: ${{ secrets.DOCKER_TOKEN }}
+
+      - name: Generate tag from branch name
+        id: generate_tag
+        run: |
+          BRANCH_NAME=${{ github.event.pull_request.head.ref }}
+          TAG_VERSION=${BRANCH_NAME#decs}
+          echo "Extracted tag version: $TAG_VERSION"
+          echo "TAG_NAME=$TAG_VERSION" >> $GITHUB_OUTPUT
+
+      - name: Build and push Docker image
+        uses: docker/build-push-action@v5
+        with:
+          context: .
+          push: true
+          tags: |
+            dguailab/decs:${{ steps.generate_tag.outputs.TAG_NAME }}
+            dguailab/decs:latest
diff --git a/.github/workflows/tag.yml b/.github/workflows/tag.yml
deleted file mode 100644
index 0168b1f..0000000
--- a/.github/workflows/tag.yml
+++ /dev/null
@@ -1,40 +0,0 @@
-name: Create Tag from Merged Branch
-
-# 워크플로우 실행 조건 설정
-on:
-  pull_request:
-    types: [closed]
-    branches:
-      - 'main'
-
-jobs:
-  tag-from-branch:
-    # PR이 'merged' 상태일 때만 job을 실행 (그냥 닫힌 경우는 제외)
-    if: github.event.pull_request.merged == true
-    runs-on: ubuntu-latest
-    steps:
-      # 1. 저장소 코드를 체크아웃
-      - name: Checkout repository
-        uses: actions/checkout@v4
-        with:
-          fetch-depth: 0
-
-      # 2. 병합된 브랜치 이름으로 태그 생성 및 푸시
-      - name: Create and Push Tag
-        run: |
-          # 병합된 브랜치(head_ref)의 이름을 변수로 저장
-          BRANCH_NAME=${{ github.event.pull_request.head.ref }}
-          
-          echo "Merged branch name is: $BRANCH_NAME"
-          
-          # Git 사용자 설정 (Action이 커밋/태그를 생성하기 위해 필요)
-          git config user.name "GitHub Actions"
-          git config user.email "actions@github.com"
-          
-          # 브랜치 이름으로 Annotated Tag 생성
-          git tag -a "$BRANCH_NAME" -m "Tag automatically created from merged branch: $BRANCH_NAME"
-          
-          # 생성된 태그를 원격 저장소로 푸시
-          git push origin "$BRANCH_NAME"
-          
-          echo "Successfully created and pushed tag: $BRANCH_NAME"