diff --git a/src/components/SearchCom/index.vue b/src/components/SearchCom/index.vue
index e168b82..23ae735 100644
--- a/src/components/SearchCom/index.vue
+++ b/src/components/SearchCom/index.vue
@@ -17,7 +17,7 @@
           </a-select>
 
           <!-- select-dictionary-tree -->
-          <a-tree-select v-if="item.type === 'select-dic-tree'" v-model="form[item.key]" :tree-data="item.options" placeholder="请选择" :multiple="item.mode ? true : false"></a-tree-select>
+          <a-tree-select v-if="item.type === 'select-dic-tree'" v-model="form[item.key]" :tree-data="item.options" placeholder="请选择" :allowClear="true" :multiple="item.mode ? true : false"></a-tree-select>
 
           <!-- date -->
           <a-date-picker v-if="item.type === 'date'" v-model="form[item.key]" style="width: 100%" :format="item.format" :valueFormat="item.format" :placeholder="item.placeholder || '请输入日期'" />