diff --git a/.github/workflows/main.yml b/.github/workflows/main.yml
index ca009b4..b99460f 100644
--- a/.github/workflows/main.yml
+++ b/.github/workflows/main.yml
@@ -62,13 +62,18 @@ jobs:
             exit 1
           fi
 
-      # 仅在 push 事件时校验提交信息格式
+      # 仅在 push 事件时校验提交信息格式，跳过合并提交
       - name: Enforce commit message format (push only)
         if: github.event_name == 'push'
         run: |
           COMMIT_MSG=$(git log -1 --pretty=%B)
           echo "Last commit: $COMMIT_MSG"
-          if ! echo "$COMMIT_MSG" | grep -E -q '^(feat|fix|chore|docs|style|refactor|test)(\(.+\))?: .+'; then
+          if echo "$COMMIT_MSG" | grep -q 'Merge branch'; then
+            echo "Merge commit detected, skipping commit message format check."
+            exit 0
+          fi
+          if ! echo "$COMMIT_MSG" | grep -E -q '^(feat|fix|chore|docs|style|refactor|test)(\(.+\))?:\s*.+'
+          then
             echo "❌ Commit message does not follow conventional format (e.g., 'feat: xxx')"
             exit 1
           fi