diff --git a/src/pages/Document/index.js b/src/pages/Document/index.js
index b65ee1dd..bc05efb8 100644
--- a/src/pages/Document/index.js
+++ b/src/pages/Document/index.js
@@ -54,7 +54,7 @@ export default class DevDocument extends Component {
   onChangeTag(tag) {
     const { storage, conf } = this.props;
     conf.docTag = tag;
-    this.setState({ tag }, () => {
+    this.setState({ tag, query: '' }, () => {
       storage.set({ conf });
     });
   }