diff --git a/frontend/src/components/dialog/change-repo-password-dialog.js b/frontend/src/components/dialog/change-repo-password-dialog.js
new file mode 100644
index 0000000000..34c0fcfb3c
--- /dev/null
+++ b/frontend/src/components/dialog/change-repo-password-dialog.js
@@ -0,0 +1,133 @@
+import React, { Fragment } from 'react';
+import PropTypes from 'prop-types';
+import { Modal, ModalHeader, ModalBody, ModalFooter } from 'reactstrap'; 
+import { gettext, repoPasswordMinLength } from '../../utils/constants';
+import { Utils } from '../../utils/utils';
+import { seafileAPI } from '../../utils/seafile-api';
+import toaster from '../toast';
+
+const propTypes = {
+  repoID: PropTypes.string.isRequired,
+  repoName: PropTypes.string.isRequired,
+  toggleDialog: PropTypes.func.isRequired
+};
+
+class ChangeRepoPasswordDialog extends React.Component {
+  constructor(props) {
+    super(props);
+    this.state = {
+      oldPassword: '',
+      newPassword: '',
+      newPasswordAgain: '',
+      submitBtnDisabled: false,
+      errorMsg: ''
+    };
+  }
+
+  handleOldPasswordInputChange = (e) => {
+    this.setState({
+      oldPassword: e.target.value
+    });
+  }
+
+  handleNewPasswordInputChange = (e) => {
+    this.setState({
+      newPassword: e.target.value
+    });
+  }
+
+  handleNewPasswordAgainInputChange = (e) => {
+    this.setState({
+      newPasswordAgain: e.target.value
+    });
+  }
+
+  formSubmit = (e) => {
+    const { oldPassword, newPassword, newPasswordAgain } = this.state;
+    if (!oldPassword) {
+      this.setState({
+        errorMsg: gettext('Please enter the old password')
+      });
+      return false;
+    }
+    if (!newPassword) {
+      this.setState({
+        errorMsg: gettext('Please enter a new password')
+      });
+      return false;
+    }
+    if (newPassword.length < repoPasswordMinLength) {
+      this.setState({
+        errorMsg: gettext('New password is too short')
+      });
+      return false;
+    }
+    if (!newPasswordAgain) {
+      this.setState({
+        errorMsg: gettext('Please enter the new password again')
+      });
+      return false;
+    }
+    if (newPassword != newPasswordAgain) {
+      this.setState({
+        errorMsg: gettext('New passwords don\'t match')
+      });
+      return false;
+    }
+
+    this.setState({
+      submitBtnDisabled: true  
+    });
+    seafileAPI.changeEncryptedRepoPassword(this.props.repoID, oldPassword, newPassword)
+    .then(() => {
+      this.props.toggleDialog();
+      toaster.success(gettext('Successfully changed library password.'));
+    }).catch((error) => {
+      let errorMsg = '';
+      if (error.response) {
+        if (error.response.data) {
+            errorMsg = error.response.data.error_msg;
+        } else {
+            errorMsg = gettext('Error');
+        }   
+      } else {
+          errorMsg = gettext('Please check the network.');
+      }   
+      this.setState({
+        errorMsg: errorMsg,
+        submitBtnDisabled: false
+      }); 
+    });
+  }
+
+
+  render() {
+    const { repoID, repoName, toggleDialog } = this.props;
+
+    return (
+      <Modal isOpen={true} centered={true} style={{height: 'auto'}}>
+        <ModalHeader toggle={toggleDialog}>
+          <span dangerouslySetInnerHTML={{__html: Utils.generateDialogTitle(gettext('Change Password of Library {placeholder}'), repoName)}}></span>
+        </ModalHeader>
+        <ModalBody>
+          <form id="repo-change-passwd-form" action="" method="post">
+            <label htmlFor="passwd">{gettext('Old Password')}</label><br />
+            <input type="password" name="old_passwd" className="form-control" id="passwd" value={this.state.oldPassword} onChange={this.handleOldPasswordInputChange} /><br />
+            <label htmlFor="new-passwd">{gettext('New Password')}</label><span className="tip">{gettext('(at least {placeholder} characters)').replace('{placeholder}', repoPasswordMinLength)}</span><br />
+            <input type="password" name="new_passwd" className="form-control" id="new-passwd" value={this.state.newPassword} onChange={this.handleNewPasswordInputChange} /><br />
+            <label htmlFor="new-passwd-again">{gettext('New Password Again')}</label><br />
+            <input type="password" name="new_passwd_again" className="form-control" id="new-passwd-again" value={this.state.newPasswordAgain} onChange={this.handleNewPasswordAgainInputChange} /><br />
+            {this.state.errorMsg && <p className="alert alert-danger" role="alert">{this.state.errorMsg}</p>}
+          </form>
+        </ModalBody>
+        <ModalFooter>
+            <button className="btn btn-primary" disabled={this.state.submitBtnDisabled} onClick={this.formSubmit}>{gettext('Submit')}</button>
+        </ModalFooter>
+      </Modal>
+    );
+  }
+}
+
+ChangeRepoPasswordDialog.propTypes = propTypes;
+
+export default ChangeRepoPasswordDialog;
diff --git a/frontend/src/pages/my-libs/item.js b/frontend/src/pages/my-libs/item.js
index 8921f2af79..8267675519 100644
--- a/frontend/src/pages/my-libs/item.js
+++ b/frontend/src/pages/my-libs/item.js
@@ -9,6 +9,7 @@ import { seafileAPI } from '../../utils/seafile-api';
 import Rename from '../../components/rename';
 import ModalPotal from '../../components/modal-portal';
 import ShareDialog from '../../components/dialog/share-dialog';
+import ChangeRepoPasswordDialog from '../../components/dialog/change-repo-password-dialog';
 
 const propTypes = {
   data: PropTypes.object.isRequired,
@@ -33,6 +34,7 @@ class Item extends Component {
       showChangeLibName: false, 
       isShowSharedDialog: false,
       highlight: false,
+      isChangeRepoPasswordDialogOpen: false
     };
   }
 
@@ -141,6 +143,11 @@ class Item extends Component {
   }
 
   changePassword = () => {
+    this.setState({isChangeRepoPasswordDialogOpen: true});
+  }
+
+  toggleChangePasswordDialog = () => {
+    this.setState({isChangeRepoPasswordDialogOpen: !this.state.isChangeRepoPasswordDialogOpen});
   }
 
   folderPerm = () => {
@@ -264,6 +271,15 @@ class Item extends Component {
             />
           </ModalPotal>
         )}
+        {this.state.isChangeRepoPasswordDialogOpen && (
+          <ModalPotal>
+            <ChangeRepoPasswordDialog
+              repoID={data.repo_id}
+              repoName={data.repo_name}
+              toggleDialog={this.toggleChangePasswordDialog}
+            />
+          </ModalPotal>
+        )}
       </Fragment>
     );
 
@@ -295,6 +311,15 @@ class Item extends Component {
             />
           </ModalPotal>
         )}
+        {this.state.isChangeRepoPasswordDialogOpen && (
+          <ModalPotal>
+            <ChangeRepoPasswordDialog
+              repoID={data.repo_id}
+              repoName={data.repo_name}
+              toggleDialog={this.toggleChangePasswordDialog}
+            />
+          </ModalPotal>
+        )}
       </Fragment>
     );
 
diff --git a/frontend/src/utils/constants.js b/frontend/src/utils/constants.js
index f9744d1a04..3a6c820995 100644
--- a/frontend/src/utils/constants.js
+++ b/frontend/src/utils/constants.js
@@ -39,6 +39,7 @@ export const enableEncryptedLibrary = window.app.pageOptions.enableEncryptedLibr
 export const enableRepoHistorySetting = window.app.pageOptions.enableRepoHistorySetting === '1';
 export const isSystemStaff = window.app.pageOptions.isSystemStaff;
 export const thumbnailSizeForOriginal = window.app.pageOptions.thumbnailSizeForOriginal;
+export const repoPasswordMinLength = window.app.pageOptions.repoPasswordMinLength;
 
 // wiki
 export const slug = window.wiki ? window.wiki.config.slug : '';
diff --git a/frontend/src/utils/utils.js b/frontend/src/utils/utils.js
index d3fac9e1c2..43d2b6ee90 100644
--- a/frontend/src/utils/utils.js
+++ b/frontend/src/utils/utils.js
@@ -144,6 +144,15 @@ export const Utils = {
       .innerHTML;
   },
 
+  generateDialogTitle: function(title, operationTarget) {
+    /*
+     * @param title: gettext('...{placeholder}...')
+     */
+    const targetStr = this.HTMLescape(operationTarget);
+    const str = `<span class="op-target ellipsis ellipsis-op-target" title=${targetStr}>${targetStr}</span>`;
+    return title.replace('{placeholder}', str);
+  },
+
   getFileName: function(filePath) {
     let lastIndex = filePath.lastIndexOf('/');
     return filePath.slice(lastIndex+1);
diff --git a/media/css/seahub_react.css b/media/css/seahub_react.css
index b5245cb1ef..895a3af6cf 100644
--- a/media/css/seahub_react.css
+++ b/media/css/seahub_react.css
@@ -111,6 +111,10 @@ a:hover { color:#eb8205; }
     overflow:hidden;
     text-overflow:ellipsis;
 }
+.op-target {
+    color: #ee8204;
+    word-wrap: break-word;
+}
 .left-zero {
     left: 0px !important;
 }
diff --git a/seahub/templates/base_for_react.html b/seahub/templates/base_for_react.html
index 94348046fd..79469c17b8 100644
--- a/seahub/templates/base_for_react.html
+++ b/seahub/templates/base_for_react.html
@@ -73,6 +73,7 @@
             enableRepoHistorySetting: '{{ enable_repo_history_setting }}',
             isSystemStaff: {% if request.user.is_staff %} true {% else %} false {% endif %},
             thumbnailSizeForOriginal: {{ thumbnail_size_for_original }},
+            repoPasswordMinLength: {{repo_password_min_length}},
         }
      };
 </script>