diff --git a/src/views/classMessage/classMessage/components/initClass.vue b/src/views/classMessage/classMessage/components/initClass.vue
index 5039c3f..99fb041 100644
--- a/src/views/classMessage/classMessage/components/initClass.vue
+++ b/src/views/classMessage/classMessage/components/initClass.vue
@@ -284,7 +284,8 @@ export default {
         CLASS_SIZE: '', // 班级容量
         CLASS_STATUS: '', // 班级状态（0-待开班、1-已开班、2-完成）
         VALIDITY_PERIOD: [],
-        CLASS_MESSAGE_ID: ''
+        CLASS_MESSAGE_ID: '',
+        peopleList: []
       },
       util: {
         BELONG_TO_CORP: '',
@@ -522,6 +523,11 @@ export default {
       this.fullscreenFlag = !this.fullscreenFlag
     },
     addSelect(row) {
+      if (this.form.CLASS_SIZE === '' || !this.form.CLASS_SIZE) {
+        this.$message.error('请先选择班级容量')
+        this.$refs.multipleTable.clearSelection()
+        return
+      }
       this.selectPeopleList.push(row)
       this.$refs.multipleTable.toggleRowSelection(row)
     },