diff --git a/backend/src/main/java/io/metersphere/performance/parse/xml/reader/JmeterDocumentParser.java b/backend/src/main/java/io/metersphere/performance/parse/xml/reader/JmeterDocumentParser.java
index 27c0502310..8ef0c6f2e2 100644
--- a/backend/src/main/java/io/metersphere/performance/parse/xml/reader/JmeterDocumentParser.java
+++ b/backend/src/main/java/io/metersphere/performance/parse/xml/reader/JmeterDocumentParser.java
@@ -73,8 +73,7 @@ public class JmeterDocumentParser implements EngineSourceParser {
 
         if (hashTree.elements().size() > 0) {
             final List<Element> childNodes = hashTree.elements();
-            for (int i = 0; i < childNodes.size(); i++) {
-                Element ele = childNodes.get(i);
+            for (Element ele : childNodes) {
                 if (nodeNameEquals(ele, HASH_TREE_ELEMENT)) {
                     parseHashTree(ele);
                 } else if (nodeNameEquals(ele, TEST_PLAN)) {
@@ -611,6 +610,15 @@ public class JmeterDocumentParser implements EngineSourceParser {
 
         Element listenerParent = getNextSibling(element);
 
+        List<Element> childNodes = listenerParent.elements();
+        for (Element item : childNodes) {
+            if (nodeNameEquals(item, BACKEND_LISTENER)) {
+                // 如果已经存在，不再添加
+                removeChildren(item);
+                return;
+            }
+        }
+
         // add class name
         Element backendListener = listenerParent.addElement(BACKEND_LISTENER);
         backendListener.addAttribute("guiclass", "BackendListenerGui");