diff --git a/src/main/java/com/tongran/agent/client/service/impl/SwitchBoardServiceImpl.java b/src/main/java/com/tongran/agent/client/service/impl/SwitchBoardServiceImpl.java
index 64edec1..2c08199 100644
--- a/src/main/java/com/tongran/agent/client/service/impl/SwitchBoardServiceImpl.java
+++ b/src/main/java/com/tongran/agent/client/service/impl/SwitchBoardServiceImpl.java
@@ -1,5 +1,6 @@
 package com.tongran.agent.client.service.impl;
 
+import com.alibaba.fastjson2.JSON;
 import com.alibaba.fastjson2.JSONObject;
 import com.tongran.agent.client.core.config.GlobalConfig;
 import com.tongran.agent.client.core.vo.SwitchBoardVO;
@@ -433,6 +434,7 @@ public class SwitchBoardServiceImpl implements SwitchBoardService {
         if(ifOIDs == null || ifOIDs.length == 0){
             return "";
         }
+        List<String> list = new ArrayList<>();
         for (int i = 1; i <= ifNumber; i++) {
             pdu = new PDU();
             for (String baseOID : ifOIDs) {
@@ -459,11 +461,13 @@ public class SwitchBoardServiceImpl implements SwitchBoardService {
                 VariableBinding[] vbs = event.getResponse().getVariableBindings().toArray(new VariableBinding[0]);
                 for (int m = 0; m < params.length; m++) {
                     AssertLog.info("参数名：{}，值={}", params[m],vbs[m]);
-                    json.put(params[m],vbs[m].getVariable().toString());
+                    JSONObject temp = new JSONObject();
+                    temp.put(params[m],vbs[m].getVariable().toString());
+                    list.add(temp.toString());
                 }
             }
         }
-        return json.toString();
+        return JSON.toJSONString(list);
     }
 
     /**