diff --git a/.github/workflows/pr-sizing.yml b/.github/workflows/pr-sizing.yml
new file mode 100644
index 00000000..d1ba98ee
--- /dev/null
+++ b/.github/workflows/pr-sizing.yml
@@ -0,0 +1,14 @@
+## Reference: https://github.com/pascalgn/size-label-action
+---
+name: 'PR Size'
+on: 
+  pull_request_target:
+    types: [opened, synchronize, reopened]
+jobs:
+  size-label:
+    runs-on: ubuntu-latest
+    steps:
+      - name: size-label
+        uses: "pascalgn/size-label-action@v0.4.2"
+        env:
+          GITHUB_TOKEN: "${{ secrets.GITHUB_TOKEN }}"
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