diff --git a/docs/index.md b/docs/index.md
index 0f07a1440..c7ead082c 100644
--- a/docs/index.md
+++ b/docs/index.md
@@ -51,5 +51,6 @@ For additional helps, feel free to take the following channels:
 * [RocketChat Room](https://chat.hyperledger.org/channel/cello): Real-time online discussions.
 * [Jira Board](https://jira.hyperledger.org/projects/CE/issues): Find development status, report bug, or help [contribute code](CONTRIBUTING.md).
 * [Gerrit](https://gerrit.hyperledger.org/r/#/q/project:cello): Development related code and patchsets, welcome to [contribute](CONTRIBUTING.md).
+* [Stack Overflow](https://stackoverflow.com/questions/tagged/hyperledger-cello): Stack overflow discussion questions about cello.
 
 <a rel="license" href="http://creativecommons.org/licenses/by/4.0/"><img alt="Creative Commons License" style="border-width:0" src="https://i.creativecommons.org/l/by/4.0/88x31.png" /></a><br />This work is licensed under a <a rel="license" href="http://creativecommons.org/licenses/by/4.0/">Creative Commons Attribution 4.0 International License</a>.
diff --git a/src/static/dashboard/src/assets/so.svg b/src/static/dashboard/src/assets/so.svg
new file mode 100644
index 000000000..5298d4c2c
--- /dev/null
+++ b/src/static/dashboard/src/assets/so.svg
@@ -0,0 +1 @@
+<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 120 120"><style>.st0{fill:#bcbbbb}.st1{fill:#f48023}</style><path class="st0" d="M84.4 93.8V70.6h7.7v30.9H22.6V70.6h7.7v23.2z"/><path class="st1" d="M38.8 68.4l37.8 7.9 1.6-7.6-37.8-7.9-1.6 7.6zm5-18l35 16.3 3.2-7-35-16.4-3.2 7.1zm9.7-17.2l29.7 24.7 4.9-5.9-29.7-24.7-4.9 5.9zm19.2-18.3l-6.2 4.6 23 31 6.2-4.6-23-31zM38 86h38.6v-7.7H38V86z"/></svg>
\ No newline at end of file
diff --git a/src/static/dashboard/src/components/GlobalHeader/index.js b/src/static/dashboard/src/components/GlobalHeader/index.js
index 7909cc2ec..6eb5005bc 100644
--- a/src/static/dashboard/src/components/GlobalHeader/index.js
+++ b/src/static/dashboard/src/components/GlobalHeader/index.js
@@ -2,11 +2,12 @@
  SPDX-License-Identifier: Apache-2.0
 */
 import React, { PureComponent } from 'react';
-import { Menu, Icon, Spin, Dropdown, Avatar, Divider, Button } from 'antd';
+import { Menu, Icon, Spin, Dropdown, Avatar, Divider, Button, Tooltip } from 'antd';
 import Debounce from 'lodash-decorators/debounce';
 import { Link } from 'dva/router';
 import styles from './index.less';
 import { getLang } from '../../utils/utils';
+import stackOverflow from '../../assets/so.svg';
 
 const language = getLang();
 export default class GlobalHeader extends PureComponent {
@@ -52,6 +53,28 @@ export default class GlobalHeader extends PureComponent {
           onClick={this.toggle}
         />
         <div className={styles.right}>
+          <Tooltip title="Document">
+            <a
+              target="_blank"
+              href="https://cello.readthedocs.io"
+              rel="noopener noreferrer"
+              className={styles.action}
+              title="Document"
+            >
+              <Icon type="question-circle-o" />
+            </a>
+          </Tooltip>
+          <Tooltip title="Stack Overflow">
+            <a
+              target="_blank"
+              href="https://stackoverflow.com/questions/tagged/hyperledger-cello"
+              rel="noopener noreferrer"
+              className={styles.action}
+              title="Stack Overflow"
+            >
+              <img src={stackOverflow} style={{ width: 18 }} />
+            </a>
+          </Tooltip>
           <Button size="small" onClick={this.changeLanguage}>
             {language === 'en' ? '中文' : 'En'}
           </Button>