diff --git a/.github/workflows/pr-receive.yml b/.github/workflows/pr-receive.yml
new file mode 100644
index 00000000..c8be38ea
--- /dev/null
+++ b/.github/workflows/pr-receive.yml
@@ -0,0 +1,22 @@
+name: Receive PR
+
+# read-only repo token
+# no access to secrets
+on:
+  pull_request:
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+
+    steps:
+      - uses: actions/checkout@v2
+
+      - name: Save PR number
+        run: |
+          mkdir -p ./pr
+          echo ${{ github.event.number }} > ./pr/NR
+      - uses: actions/upload-artifact@v2
+        with:
+          name: pr
+          path: pr/
diff --git a/.github/workflows/pr-test.yml b/.github/workflows/pr-test.yml
new file mode 100644
index 00000000..e9eb0472
--- /dev/null
+++ b/.github/workflows/pr-test.yml
@@ -0,0 +1,55 @@
+name: Comment on the pull request
+
+# read-write repo token
+# access to secrets
+on:
+  workflow_run:
+    workflows: ["Receive PR"]
+    types:
+      - completed
+
+jobs:
+  upload:
+    runs-on: ubuntu-latest
+    if: >
+      ${{ github.event.workflow_run.event == 'pull_request' &&
+      github.event.workflow_run.conclusion == 'success' }}
+    steps:
+      - name: "Download artifact"
+        uses: actions/github-script@v3.1.0
+        with:
+          script: |
+            var artifacts = await github.actions.listWorkflowRunArtifacts({
+               owner: context.repo.owner,
+               repo: context.repo.repo,
+               run_id: ${{github.event.workflow_run.id }},
+            });
+            var matchArtifact = artifacts.data.artifacts.filter((artifact) => {
+              return artifact.name == "pr"
+            })[0];
+            var download = await github.actions.downloadArtifact({
+               owner: context.repo.owner,
+               repo: context.repo.repo,
+               artifact_id: matchArtifact.id,
+               archive_format: 'zip',
+            });
+            var fs = require('fs');
+            fs.writeFileSync('${{github.workspace}}/pr.zip', Buffer.from(download.data));
+      - name: "Unzip"
+        run: |
+          unzip pr.zip
+          ls -l
+
+      - name: "Comment on PR"
+        uses: actions/github-script@v3
+        with:
+          github-token: ${{ secrets.GITHUB_TOKEN }}
+          script: |
+            var fs = require('fs');
+            var issue_number = Number(fs.readFileSync('./NR'));
+            await github.issues.createComment({
+              owner: context.repo.owner,
+              repo: context.repo.repo,
+              issue_number: issue_number,
+              body: 'Everything is OK. Thank you for the PR!'
+            });
diff --git a/.github/workflows/unit-test.yml b/.github/workflows/unit-test.yml
index 2b5f03c1..e7987d1c 100644
--- a/.github/workflows/unit-test.yml
+++ b/.github/workflows/unit-test.yml
@@ -3,8 +3,6 @@ name: UnitTest
 on:
   push:
     branches: [main]
-  pull_request:
-    branches: [main]
 
 env:
   YAO_DEV: ${{ github.WORKSPACE }}