diff --git a/src/views/trials/trials-panel/setting/reading-unit/components/QuestionsForm.vue b/src/views/trials/trials-panel/setting/reading-unit/components/QuestionsForm.vue
index 0bf95031..a6fd45bf 100644
--- a/src/views/trials/trials-panel/setting/reading-unit/components/QuestionsForm.vue
+++ b/src/views/trials/trials-panel/setting/reading-unit/components/QuestionsForm.vue
@@ -769,7 +769,7 @@ export default {
         GroupId: null,
         ClassifyQuestionId: null,
         ClassifyAlgorithms: null,
-        LimitShow: null
+        LimitShow: 0
         // IsEnable: true
       },
       rules: {