diff --git a/spug_web/src/pages/deploy/app/CloneConfirm.js b/spug_web/src/pages/deploy/app/CloneConfirm.js
index 1d37797..c36eb60 100644
--- a/spug_web/src/pages/deploy/app/CloneConfirm.js
+++ b/spug_web/src/pages/deploy/app/CloneConfirm.js
@@ -49,6 +49,7 @@ class CloneConfirm extends React.Component {
         <Form.Item required label="应用及环境" help="克隆配置，将基于选择对象的配置来创建新的发布配置。">
           <Cascader
             options={options}
+            placeholder="请选择目标应用及环境"
             loadData={this.handleLoadData}
             onChange={this.props.onChange}/>
         </Form.Item>
diff --git a/spug_web/src/pages/deploy/app/Table.js b/spug_web/src/pages/deploy/app/Table.js
index 3f529fb..1836284 100644
--- a/spug_web/src/pages/deploy/app/Table.js
+++ b/spug_web/src/pages/deploy/app/Table.js
@@ -18,7 +18,7 @@ import lds from 'lodash';
 class ComTable extends React.Component {
   constructor(props) {
     super(props);
-    this.cloneObj = {};
+    this.cloneObj = null;
   }
 
   componentDidMount() {
@@ -60,11 +60,16 @@ class ComTable extends React.Component {
 
   handleClone = (e, id) => {
     e.stopPropagation();
+    this.cloneObj = null;
     Modal.confirm({
       icon: 'exclamation-circle',
       title: '选择克隆对象',
       content: <CloneConfirm onChange={v => this.cloneObj = v[1]}/>,
       onOk: () => {
+        if (!this.cloneObj) {
+          message.error('请选择目标应用及环境')
+          return Promise.reject()
+        }
         const info = JSON.parse(this.cloneObj);
         store.showExtForm(null, id, info, true)
       },