diff --git a/frontend/src/components/review-list-view/review-comment-dialog.js b/frontend/src/components/review-list-view/review-comment-dialog.js
index f673a7aca7..4cca4745e3 100644
--- a/frontend/src/components/review-list-view/review-comment-dialog.js
+++ b/frontend/src/components/review-list-view/review-comment-dialog.js
@@ -3,13 +3,14 @@ import PropTypes from 'prop-types';
 import { Button } from 'reactstrap';
 import { seafileAPI } from '../../utils/seafile-api';
 import { reviewID, gettext } from '../../utils/constants';
+import { processor } from '../../utils/seafile-markdown2html';
 
 import '../../css/review-comment-dialog.css';
 
 const commentDialogPropTypes = {
   onCommentAdded: PropTypes.func.isRequired,
   toggleCommentDialog: PropTypes.func.isRequired,
-  selectedText: PropTypes.string,
+  quote: PropTypes.string,
   newIndex: PropTypes.number,
   oldIndex: PropTypes.number,
 };
@@ -21,6 +22,7 @@ class ReviewCommentDialog extends React.Component {
     this.state = {
       comment: '',
       userName: '',
+      quote: '',
     };
   }
 
@@ -42,9 +44,9 @@ class ReviewCommentDialog extends React.Component {
   submitComment = () => {
     let comment = this.state.comment.trim();
     if (comment.length > 0) {
-      if (this.props.selectedText.length > 0) {
+      if (this.props.quote.length > 0) {
         let detail = {
-          selectedText: this.props.selectedText.slice(0, 10),
+          quote: this.props.quote,
           newIndex: this.props.newIndex,
           oldIndex: this.props.oldIndex
         };
@@ -64,12 +66,15 @@ class ReviewCommentDialog extends React.Component {
     }
   }
 
-  setQuoteText = (text) => {
-    if (text.length > 0) {
-      this.setState({
-        comment: text
-      });
-    }
+  setQuoteText = (mdQuote) => {
+    processor.process(mdQuote).then(
+      (result) => {
+        let quote = String(result);
+        this.setState({
+          quote: quote
+        });
+      }
+    );
   }
 
   componentWillMount() {
@@ -77,12 +82,12 @@ class ReviewCommentDialog extends React.Component {
   }
 
   componentDidMount() {
-    this.setQuoteText(this.props.selectedText);
+    this.setQuoteText(this.props.quote);
   }
 
   componentWillReceiveProps(nextProps) {
-    if (this.props.selectedText !== nextProps.selectedText) {
-      this.setQuoteText(nextProps.selectedText);
+    if (this.props.quote !== nextProps.quote) {
+      this.setQuoteText(nextProps.quote);
     }
   }
 
@@ -90,6 +95,9 @@ class ReviewCommentDialog extends React.Component {
     return (
       <div className="review-comment-dialog">
         <div>{this.state.userName}</div>
+        <blockquote className="review-comment-dialog-quote">
+          <div dangerouslySetInnerHTML={{ __html: this.state.quote}}></div>
+        </blockquote>
         <textarea value={this.state.comment} onChange={this.handleCommentChange}></textarea>
         <div className="button-group">
           <Button size="sm" color="primary" onClick={this.submitComment}>{gettext('Submit')}</Button>
diff --git a/frontend/src/components/review-list-view/review-comments.js b/frontend/src/components/review-list-view/review-comments.js
index 8cd5eb92c7..ea2e4ed25c 100644
--- a/frontend/src/components/review-list-view/review-comments.js
+++ b/frontend/src/components/review-list-view/review-comments.js
@@ -132,8 +132,8 @@ class ReviewComments extends React.Component {
     });
   };
   
-  scrollToQuote = (newIndex, oldIndex, selectedText) => {
-    this.props.scrollToQuote(newIndex, oldIndex, selectedText);
+  scrollToQuote = (newIndex, oldIndex, quote) => {
+    this.props.scrollToQuote(newIndex, oldIndex, quote);
     this.setState({
       comment: ''
     });
@@ -227,7 +227,8 @@ class CommentItem extends React.Component {
     super(props);
     this.state = {
       dropdownOpen: false,
-      html: '',
+      comment: '',
+      quote: '',
     };
   }
 
@@ -237,66 +238,74 @@ class CommentItem extends React.Component {
     });
   }
 
-  convertComment = (mdFile) => {
-    processor.process(mdFile).then(
+  convertComment = (item) => {
+    processor.process(item.comment).then(
       (result) => {
-        let html = String(result);
+        let comment = String(result);
         this.setState({
-          html: html
+          comment: comment
+        });
+      }
+    );
+    processor.process(item.quote).then(
+      (result) => {
+        let quote = String(result);
+        this.setState({
+          quote: quote
         });
       }
     );
   }
 
   scrollToQuote = () => {
-    this.props.scrollToQuote(this.props.item.newIndex, this.props.item.oldIndex,
-      this.props.item.selectedText);
+    const item = this.props.item;
+    this.props.scrollToQuote(item.newIndex, item.oldIndex, item.quote);
   }
 
   componentWillMount() {
-    this.convertComment(this.props.item.comment);
+    this.convertComment(this.props.item);
   }
 
   componentWillReceiveProps(nextProps) {
-    this.convertComment(nextProps.item.comment);
+    this.convertComment(nextProps.item);
   }
 
   render() {
-    if (this.props.item.resolved && !this.props.showResolvedComment) {
+    const item = this.props.item;
+    if (item.resolved && !this.props.showResolvedComment) {
       return null;
     }
     return (
-      <li className={this.props.item.resolved ? 'seafile-comment-item seafile-comment-item-resolved'
-        : 'seafile-comment-item'} id={this.props.item.id}>
+      <li className={item.resolved ? 'seafile-comment-item seafile-comment-item-resolved'
+        : 'seafile-comment-item'} id={item.id}>
         <div className="seafile-comment-info">
-          <img className="avatar" src={this.props.item.avatarUrl} alt=""/>
+          <img className="avatar" src={item.avatarUrl} alt=""/>
           <div className="reviewer-info">
-            <div className="reviewer-name">{this.props.item.name}</div>
-            <div className="review-time">{this.props.item.time}</div>
+            <div className="reviewer-name">{item.name}</div>
+            <div className="review-time">{item.time}</div>
           </div>
-          { !this.props.item.resolved &&
+          { !item.resolved &&
             <Dropdown isOpen={this.state.dropdownOpen} size="sm"
               className="seafile-comment-dropdown" toggle={this.toggleDropDownMenu}>
               <DropdownToggle className="seafile-comment-dropdown-btn">
                 <i className="fas fa-ellipsis-v"></i>
               </DropdownToggle>
               <DropdownMenu>
-                { (this.props.item.userEmail === this.props.accountInfo.email) &&
+                { (item.userEmail === this.props.accountInfo.email) &&
                   <DropdownItem onClick={this.props.deleteComment}
-                    className="delete-comment" id={this.props.item.id}>{gettext('Delete')}</DropdownItem>}
+                    className="delete-comment" id={item.id}>{gettext('Delete')}</DropdownItem>}
                 <DropdownItem onClick={this.props.resolveComment}
-                  className="seafile-comment-resolved" id={this.props.item.id}>{gettext('Mark as resolved')}</DropdownItem>
+                  className="seafile-comment-resolved" id={item.id}>{gettext('Mark as resolved')}</DropdownItem>
               </DropdownMenu>
             </Dropdown>
           }
         </div>
-        { (this.props.item.newIndex >= -1 && this.props.item.oldIndex >= -1)? 
-          <div className="seafile-comment-content" onClick={this.scrollToQuote}
-            dangerouslySetInnerHTML={{ __html: this.state.html }}></div>
-          :
-          <div className="seafile-comment-content"
-            dangerouslySetInnerHTML={{ __html: this.state.html }}></div>
+        { (item.newIndex >= -1 && item.oldIndex >= -1) &&
+          <blockquote className="seafile-comment-content">
+            <div onClick={this.scrollToQuote} dangerouslySetInnerHTML={{ __html: this.state.quote }}></div>
+          </blockquote>
         }
+        <div className="seafile-comment-content" dangerouslySetInnerHTML={{ __html: this.state.comment }}></div>
       </li>
     );
   }
diff --git a/frontend/src/css/review-comment-dialog.css b/frontend/src/css/review-comment-dialog.css
index 4140bed239..3b291fd0a1 100644
--- a/frontend/src/css/review-comment-dialog.css
+++ b/frontend/src/css/review-comment-dialog.css
@@ -3,7 +3,7 @@
   position: absolute;
   top: 30%;
   right: 0;
-  padding: 10px;
+  padding: 15px;
   background-color: #fafafa;
   border: 1px solid rgba(0,0,0,.2);
   border-radius: .3rem;
@@ -24,9 +24,14 @@
 }
 .review-comment-dialog textarea {
   width: 100%;
-  min-height: 200px;
+  min-height: 100px;
   max-height: 300px;
 }
 .review-comment-dialog .button-group .btn {
   margin-right: 10px;
+}
+.review-comment-dialog .review-comment-dialog-quote {
+  margin-top: 10px;
+  max-height: 4rem;
+  overflow: hidden;
 }
\ No newline at end of file
diff --git a/frontend/src/css/review-comments.css b/frontend/src/css/review-comments.css
index 01ff6080a4..ca3a34025e 100644
--- a/frontend/src/css/review-comments.css
+++ b/frontend/src/css/review-comments.css
@@ -96,10 +96,11 @@
 .seafile-comment-item .seafile-comment-content td {
   border: 1px solid #333;
 }
-.seafile-comment-item .seafile-comment-content blockquote {
+.seafile-comment-item blockquote {
   word-wrap: break-word;
   overflow: hidden;
   margin-right: 10px;
+  cursor: pointer;
 }
 .seafile-comment-row-resize {
   height: 5px;
diff --git a/frontend/src/draft-review.js b/frontend/src/draft-review.js
index a70d427c80..6f5a6611a1 100644
--- a/frontend/src/draft-review.js
+++ b/frontend/src/draft-review.js
@@ -10,7 +10,6 @@ import { siteRoot, gettext, reviewID, draftOriginFilePath, draftFilePath, draftO
 import { seafileAPI } from './utils/seafile-api';
 import axios from 'axios';
 import DiffViewer from '@seafile/seafile-editor/dist/viewer/diff-viewer';
-import { htmlSerializer } from '@seafile/seafile-editor/dist/utils/serialize-html';
 import { serialize } from '@seafile/seafile-editor/dist/utils/slate2markdown/serialize';
 import Loading from './components/loading';
 import toaster from './components/toast';
@@ -22,7 +21,7 @@ import { findRange } from '@seafile/slate-react';
 import { Nav, NavItem, NavLink, TabContent, TabPane } from 'reactstrap';
 import classnames from 'classnames';
 import HistoryList from './pages/review/history-list';
-import { Document, Block, Value } from 'slate';
+import { Value } from 'slate';
 
 import './assets/css/fa-solid.css';
 import './assets/css/fa-regular.css';
@@ -55,7 +54,7 @@ class DraftReview extends React.Component {
       changedNodes: [],
       isShowCommentDialog: false,
     };
-    this.selectedText = '';
+    this.quote = '';
     this.newIndex = null;
     this.oldIndex = null;
     this.changeIndex = -1;
@@ -246,34 +245,8 @@ class DraftReview extends React.Component {
     }
   }
 
-  getSelectedText = () => {
-    const native = window.getSelection();
-    const nativeRange = native.getRangeAt(0);
-    let contents = nativeRange.cloneContents();
-    const div = window.document.createElement('div');
-    div.appendChild(contents);
-    div.setAttribute('contenteditable', true);
-    let fragmentDOM = htmlSerializer.deserialize(div.innerHTML).document;
-    let nodes = [];
-    fragmentDOM.nodes.map(node => {
-      let newNode = Block.create({
-        data: node.data,
-        key: node.key,
-        nodes: node.nodes,
-        type: 'blockquote'
-      });
-      nodes.push(newNode);
-    });
-    let newDocument = Document.create({
-      nodes: nodes
-    });
-    let newValue = Value.create({
-      document: newDocument
-    });
-    this.selectedText = serialize(newValue);
-  }
-
-  getIndexs = () => {
+  getQuote = () => {
+    this.quote = '';
     let range = this.setBtnPosition();
     if (!range) {
       return;
@@ -306,6 +279,11 @@ class DraftReview extends React.Component {
         range = range.moveFocusTo(nextText.key, 0); 
       }
     }
+    let fragment = document.getFragmentAtRange(range);
+    let newValue = Value.create({
+      document: fragment
+    });
+    this.quote = serialize(newValue.toJSON());
     let blockPath = document.createSelection(range).anchor.path.slice(0, 1);
     let node = document.getNode(blockPath);
     this.newIndex = node.data.get('new_index');
@@ -314,8 +292,10 @@ class DraftReview extends React.Component {
 
   addComment = (e) => {
     e.stopPropagation();
-    this.getSelectedText();
-    this.getIndexs();
+    this.getQuote();
+    if (!this.quote) {
+      return;
+    }
     this.setState({
       isShowCommentDialog: true
     });
@@ -341,7 +321,7 @@ class DraftReview extends React.Component {
     return scroller;
   }
 
-  scrollToQuote = (newIndex, oldIndex, selectedText) => {
+  scrollToQuote = (newIndex, oldIndex, quote) => {
     const nodes = this.refs.diffViewer.value.document.nodes;
     let key;
     nodes.map((node) => {
@@ -351,7 +331,7 @@ class DraftReview extends React.Component {
     });
     if (typeof(key) !== 'string') {
       nodes.map((node) => {
-        if (node.text.indexOf(selectedText) > 0) {
+        if (node.text.indexOf(quote) > 0) {
           key = node.key;
         }
       });
@@ -633,7 +613,7 @@ class DraftReview extends React.Component {
           <ReviewCommentDialog
             toggleCommentDialog={this.toggleCommentDialog}
             onCommentAdded={this.onCommentAdded}
-            selectedText={this.selectedText}
+            quote={this.quote}
             newIndex={this.newIndex}
             oldIndex={this.oldIndex}
           />