diff --git a/.github/workflows/sync-upstream.yml b/.github/workflows/sync-upstream.yml
new file mode 100644
index 00000000..f9232473
--- /dev/null
+++ b/.github/workflows/sync-upstream.yml
@@ -0,0 +1,40 @@
+name: Sync Upstream and Trigger Build
+
+on:
+  schedule:
+    - cron: "0 0 * * *"   # 每天 UTC 时间 0 点检查一次
+  workflow_dispatch:       # 支持手动触发
+
+jobs:
+  sync-and-build:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout Fork 代码
+        uses: actions/checkout@v4
+        with:
+          fetch-depth: 0  # 获取完整 Git 历史
+
+      - name: 添加上游仓库 Remote
+        run: |
+          git remote add upstream https://github.com/cloudflare/cloudflared.git
+
+      - name: 获取上游最新代码
+        run: |
+          git fetch upstream
+
+      - name: 合并上游代码到本地分支
+        run: |
+          git merge upstream/master --no-edit  # 假设上游主分支是 master
+          # 如果有冲突，这里会失败（需手动处理）
+
+      - name: 推送更新到 Fork 仓库
+        env:
+          GITHUB_TOKEN: ${{ secrets.TOKEN }}
+        run: |
+          git push origin main
+
+      - name: 触发编译工作流
+        uses: benc-uk/workflow-dispatch@v1
+        with:
+          workflow: build.yml  # 你的编译工作流文件名
+          token: ${{ secrets.TOKEN }}