diff --git a/.dlc.json b/.dlc.json
index 4e9489664d1..0880ad8221e 100644
--- a/.dlc.json
+++ b/.dlc.json
@@ -11,6 +11,12 @@
     },
     {
       "pattern": "^https://dolphinscheduler.apache.org"
+    },
+    {
+      "pattern": ".github/workflows"
+    },
+    {
+      "pattern": "^file:///"
     }
   ],
   "replacementPatterns": [
diff --git a/.github/workflows/dead-link-checker.yaml b/.github/workflows/dead-link-checker.yaml
index f1d21b98de7..f9bb79b60a8 100644
--- a/.github/workflows/dead-link-checker.yaml
+++ b/.github/workflows/dead-link-checker.yaml
@@ -36,7 +36,7 @@ jobs:
     steps:
       - uses: actions/checkout@v2
       - name: Prepare Related Resource
-        if: github.event_name == 'schedule'
+        if: github.event_name == 'schedule' || github.event_name == 'pull_request'
         run: ./scripts/prepare_docs.sh
       - run: npm install fs-extra --save-dev
       - name: Generate the images of Logs and Events