diff --git a/src/components/JExpandTable.vue b/src/components/JExpandTable.vue
index 6e95a6ba..6c0f3342 100644
--- a/src/components/JExpandTable.vue
+++ b/src/components/JExpandTable.vue
@@ -227,7 +227,7 @@ export default {
     submit () {
       const arr = []
       for (const i in this.dataSource) {
-        if (this.$refs[`ruleForm${i}`][0]) {
+        if (this.$refs[`ruleForm${i}`] && this.$refs[`ruleForm${i}`][0]) {
           this.$refs[`ruleForm${i}`][0].validate(valid => {
             arr[i] = valid
           })