diff --git a/src/components/Course/homework.vue b/src/components/Course/homework.vue
index 584a446f..6f3912e9 100644
--- a/src/components/Course/homework.vue
+++ b/src/components/Course/homework.vue
@@ -136,6 +136,7 @@ export default {
       }
       apiCourseStudy.myHomeworkList(params).then(rs=>{
         if(rs.status==200){
+          this.studyItemId = ''
           this.records=rs.result;
           if(rs.result.length>0){
             this.studyItemIdOnce = rs.result[rs.result.length - 1].id;