diff --git a/src/pages/activity/addActivity.vue b/src/pages/activity/addActivity.vue
index 123da57..f00b5d7 100644
--- a/src/pages/activity/addActivity.vue
+++ b/src/pages/activity/addActivity.vue
@@ -202,6 +202,7 @@ export default {
         return;
       }
       this.formValidate.params.splice(index, 1);
+      this.$forceUpdate();
     },
     cancel() {
       this.$emit("dispalyAddActivityModal", false, false);