diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index a3d66279..e072aff5 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -179,3 +179,39 @@ jobs:
 
       - name: Export build
         run: npx expo export --platform android --output-dir dist
+
+  docker:
+    name: Build and push backend image
+    needs:
+      - backend
+      - migrations
+      - frontend
+    if: github.event_name == 'push' && github.ref == 'refs/heads/main'
+    runs-on: [qiniu, ubuntu-24.04]
+    permissions:
+      contents: read
+      packages: write
+    steps:
+      - uses: actions/checkout@v4
+
+      - name: Set up Docker Buildx
+        uses: docker/setup-buildx-action@v3
+
+      - name: Login to GitHub Container Registry
+        uses: docker/login-action@v3
+        with:
+          registry: ghcr.io
+          username: ${{ github.actor }}
+          password: ${{ secrets.GITHUB_TOKEN }}
+
+      - name: Build and push backend image
+        uses: docker/build-push-action@v6
+        with:
+          context: ./backend
+          push: true
+          tags: |
+            ghcr.io/1024xengineer/timeflow-backend:latest
+            ghcr.io/1024xengineer/timeflow-backend:${{ github.sha }}
+          labels: |
+            org.opencontainers.image.source=https://github.com/${{ github.repository }}
+            org.opencontainers.image.revision=${{ github.sha }}