diff --git a/public/home/home.js b/public/home/home.js
index 06c0546ca..78b9d517c 100644
--- a/public/home/home.js
+++ b/public/home/home.js
@@ -94,9 +94,11 @@ socket.onmessage = function (e) {
             var currentTime = new Date().getTime();
             for(var i = 0; i < messageQueue.length; i++){
                 var record = messageQueue[i];
-
                 var actionName = getAction(record.OpType,isZh);
-                console.log("receive action type=" + record.OpType + " name=" + actionName);
+                if(record.ActUser == null){
+                    console.log("receive action type=" + record.OpType + " name=" + actionName + " but user is null.");
+                    continue;
+                }
                 var recordPrefix = getMsg(record);
                 if(record.OpType == "6" || record.OpType == "10" || record.OpType == "12" || record.OpType == "13"){
                     html += recordPrefix + actionName;