diff --git a/.github/workflows/compressed-size.yml b/.github/workflows/compressed-size.yml
new file mode 100644
index 000000000..a1d031db6
--- /dev/null
+++ b/.github/workflows/compressed-size.yml
@@ -0,0 +1,14 @@
+name: Compressed Size
+
+on: [pull_request]
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+
+    steps:
+      - uses: actions/checkout@v2
+      - uses: preactjs/compressed-size-action@v2
+        with:
+          repo-token: "${{ secrets.GITHUB_TOKEN }}"
+          pattern: './packages/vant/lib/{vant.min.js,index.css}'