diff --git a/public/react/src/modules/courses/poll/PollDetailTabForthRules.js b/public/react/src/modules/courses/poll/PollDetailTabForthRules.js
index f7a1e111a..056c59983 100644
--- a/public/react/src/modules/courses/poll/PollDetailTabForthRules.js
+++ b/public/react/src/modules/courses/poll/PollDetailTabForthRules.js
@@ -293,7 +293,7 @@ class PollDetailTabForthRules extends Component{
 		for(var i=0;i<myRules.length;i++){
 		let arr=Object.assign({}, this.state.rules[parseInt(i)]);
 				if(arr.poll_status < 2){
-						if(arr.course_group_id==undefined || arr.course_group_id.length==0){
+						if(arr.course_group_id===undefined || arr.course_group_id.length===0){
 								arr.class_flag="请选择分班"
 								flag=false;
 						}else{
@@ -301,7 +301,7 @@ class PollDetailTabForthRules extends Component{
 						}
 
 
-						if(arr.publish_time==undefined){
+						if(arr.publish_time==undefined||arr.publish_time===null||arr.publish_time===""){
 								arr.publish_flag="请选择发布时间"
 								flag1=false;
 						}
@@ -309,7 +309,7 @@ class PollDetailTabForthRules extends Component{
 								arr.publish_flag="发布时间不能早于当前时间"
 								flag1=false;
 						}
-						if(arr.end_time==undefined){
+						if(arr.end_time===undefined||arr.end_time===null||arr.end_time===""){
 								arr.end_flag="请选择截止时间"
 								flag2=false;
 						}
@@ -325,7 +325,7 @@ class PollDetailTabForthRules extends Component{
 					myRules[i]=arr
 				}
 		}
-		if(flag==false ||flag1==false ||flag2==false){
+		if(flag===false ||flag1===false ||flag2===false){
 			return {
 				validate: false,
 				rules: myRules