diff --git a/ui/src/components/dynamics-form/constructor/index.vue b/ui/src/components/dynamics-form/constructor/index.vue
index 5b1ade7dd..18a2462f5 100644
--- a/ui/src/components/dynamics-form/constructor/index.vue
+++ b/ui/src/components/dynamics-form/constructor/index.vue
@@ -11,10 +11,10 @@
       <el-input v-model="form_data.field" placeholder="请输入参数" />
     </el-form-item>
     <el-form-item label="显示名称" :required="true" prop="label" :rules="rules.label">
-      <el-input v-model="form_data.label" placeholder="请输入显示名称" />
+      <el-input v-model="form_data.label" :maxlength="64" placeholder="请输入显示名称" />
     </el-form-item>
     <el-form-item label="参数提示说明">
-      <el-input v-model="form_data.tooltip" placeholder="请输入参数提示说明" />
+      <el-input v-model="form_data.tooltip" :maxlength="128" placeholder="请输入参数提示说明" />
     </el-form-item>
     <el-form-item label="是否必填" :required="true" prop="required" :rules="rules.required">
       <el-switch v-model="form_data.required" :active-value="true" :inactive-value="false" />
diff --git a/ui/src/components/dynamics-form/items/label/TooltipLabel.vue b/ui/src/components/dynamics-form/items/label/TooltipLabel.vue
index 90276c608..ae8f47727 100644
--- a/ui/src/components/dynamics-form/items/label/TooltipLabel.vue
+++ b/ui/src/components/dynamics-form/items/label/TooltipLabel.vue
@@ -4,7 +4,9 @@
       <span>{{ label }}</span>
     </div>
     <el-tooltip effect="dark" placement="right">
-      <template #content>{{ tooltip }}</template>
+      <template #content
+        ><div style="width: 200px">{{ tooltip }}</div></template
+      >
       <AppIcon iconName="app-warning" class="app-warning-icon"></AppIcon>
     </el-tooltip>
   </div>