diff --git a/src/main/java/com/chinaunicom/mall/ebtp/extend/uniBss/UniBssUtil.java b/src/main/java/com/chinaunicom/mall/ebtp/extend/uniBss/UniBssUtil.java
index efee767..0bba1fe 100644
--- a/src/main/java/com/chinaunicom/mall/ebtp/extend/uniBss/UniBssUtil.java
+++ b/src/main/java/com/chinaunicom/mall/ebtp/extend/uniBss/UniBssUtil.java
@@ -3,6 +3,7 @@ package com.chinaunicom.mall.ebtp.extend.uniBss;
 
 import com.alibaba.fastjson.JSON;
 import com.alibaba.fastjson.JSONArray;
+import com.alibaba.fastjson.serializer.SerializerFeature;
 import com.chinaunicom.mall.ebtp.common.uniBss.entity.UniBss;
 import com.chinaunicom.mall.ebtp.common.uniBss.entity.UniBssAttached;
 import com.chinaunicom.mall.ebtp.common.uniBss.entity.UniBssHead;
@@ -77,8 +78,9 @@ public class UniBssUtil {
         UniBssMap uniBssMap = new UniBssMap();
         uniBssMap.setUniBssHead(uniBss.getUniBssHead());
         uniBssMap.setUniBssAttached(uniBss.getUniBssAttached());
-        uniBssMap.setUniBssBodyMap(uniBss.getUniBssBodyMap()==null||uniBss.getUniBssBodyMap().isEmpty()?
-                JSONArray.parseObject(JSONArray.toJSONString(uniBss.getUniBssBody()), Map.class):uniBss.getUniBssBodyMap());
+        uniBssMap.setUniBssBodyMap(uniBss.getUniBssBodyMap()==null||uniBss.getUniBssBodyMap().isEmpty()
+                ?JSONArray.parseObject(JSON.toJSONString(uniBss.getUniBssBody(), SerializerFeature.WriteMapNullValue), Map.class)
+                :uniBss.getUniBssBodyMap());
         return JSON.toJSONString(uniBssMap);
     }
     public UniBss getUniBss(Map<String,Object> reqMap){