diff --git a/src/views/user_menu/edit.vue b/src/views/user_menu/edit.vue
index a026b1c..e400f4a 100644
--- a/src/views/user_menu/edit.vue
+++ b/src/views/user_menu/edit.vue
@@ -64,7 +64,8 @@
           <el-input
             v-model="formData.notes"
             clearable
-            placeholder="请输入菜单备注"
+            maxlength="20"
+            placeholder="请输入菜单备注(20字以内)"
           />
         </el-form-item>
         <el-form-item label="菜单排序" prop="sort">