diff --git a/Jenkinsfile b/Jenkinsfile
index 46536a2..0947196 100644
--- a/Jenkinsfile
+++ b/Jenkinsfile
@@ -435,12 +435,23 @@ pipeline {
 // 辅助函数
 // ============================================
 
-// 获取变更的文件列表
+// 获取变更的文件列表（对比上次成功构建，支持多 commit）
 def getChangedFiles() {
     def changedFiles = sh(
         script: '''
-            PREV=$(git rev-parse HEAD~1 2>/dev/null || echo "")
-            [ -z "$PREV" ] && echo "all" || git diff --name-only $PREV HEAD
+            # 优先使用上次成功构建的 commit
+            if [ -n "$GIT_PREVIOUS_SUCCESSFUL_COMMIT" ]; then
+                PREV="$GIT_PREVIOUS_SUCCESSFUL_COMMIT"
+            else
+                # 回退到 origin/master（如果有）
+                PREV=$(git rev-parse origin/master 2>/dev/null || git rev-parse HEAD~1 2>/dev/null || echo "")
+            fi
+
+            if [ -z "$PREV" ]; then
+                echo "all"
+            else
+                git diff --name-only $PREV HEAD
+            fi
         ''',
         returnStdout: true
     ).trim()