diff --git a/spug_web/src/pages/exec/template/Form.js b/spug_web/src/pages/exec/template/Form.js
index c67c9b5..aa40bfa 100644
--- a/spug_web/src/pages/exec/template/Form.js
+++ b/spug_web/src/pages/exec/template/Form.js
@@ -135,7 +135,7 @@ export default observer(function () {
           <Button type="link" style={{padding: 0}} onClick={() => setParameter({})}>添加参数</Button>
         </Form.Item>
         <Form.Item label="目标主机">
-          <HostSelector value={info.host_ids} onChange={ids => info.host_ids = ids}/>
+          <HostSelector nullable value={info.host_ids} onChange={ids => info.host_ids = ids}/>
         </Form.Item>
         <Form.Item name="desc" label="备注信息">
           <Input.TextArea placeholder="请输入模板备注信息"/>
diff --git a/spug_web/src/pages/host/Selector.js b/spug_web/src/pages/host/Selector.js
index ae6257e..54e233d 100644
--- a/spug_web/src/pages/host/Selector.js
+++ b/spug_web/src/pages/host/Selector.js
@@ -167,7 +167,7 @@ function HostSelector(props) {
         className={styles.modal}
         title={props.title || '主机列表'}
         onOk={handleSubmit}
-        okButtonProps={{disabled: selectedRowKeys.length === 0}}
+        okButtonProps={{disabled: selectedRowKeys.length === 0 && !props.nullable}}
         confirmLoading={loading}
         onCancel={handleClose}>
         <Row>
@@ -231,6 +231,7 @@ HostSelector.defaultProps = {
   type: 'text',
   mode: 'ids',
   onlyOne: false,
+  nullable: false,
   onChange: () => null
 }