diff --git a/frontend/src/components/user-select.js b/frontend/src/components/user-select.js
index eabe0a91c2..979fba7366 100644
--- a/frontend/src/components/user-select.js
+++ b/frontend/src/components/user-select.js
@@ -2,7 +2,7 @@ import React from 'react';
 import PropTypes from 'prop-types';
 import AsyncSelect from 'react-select/async';
 import { seafileAPI } from '../utils/seafile-api';
-import { gettext, enableShowContactEmailWhenSearchUser } from '../utils/constants';
+import { gettext, enableShowContactEmailWhenSearchUser, enableShowLoginIDWhenSearchUser } from '../utils/constants';
 import { Utils } from '../utils/utils';
 import toaster from './toast';
 import { UserSelectStyle } from './common/select';
@@ -49,12 +49,13 @@ class UserSelect extends React.Component {
             let obj = {};
             obj.value = item.name;
             obj.email = item.email;
-            obj.label = enableShowContactEmailWhenSearchUser ? (
+            obj.label = (enableShowContactEmailWhenSearchUser || enableShowLoginIDWhenSearchUser) ? (
               <div className="d-flex">
                 <img src={item.avatar_url} className="avatar" width="24" alt="" />
                 <div className="ml-2">
                   <span className="user-option-name">{item.name}</span><br />
-                  <span className="user-option-email">{item.contact_email}</span>
+                  {enableShowContactEmailWhenSearchUser && <span className="user-option-email">{item.contact_email}</span>}
+                  {enableShowLoginIDWhenSearchUser && <span className="user-option-email">{item.login_id}</span>}
                 </div>
               </div>
             ) : (
diff --git a/frontend/src/components/user-settings/user-basic-info-form.js b/frontend/src/components/user-settings/user-basic-info-form.js
index f9df710f0e..b3f623dda8 100644
--- a/frontend/src/components/user-settings/user-basic-info-form.js
+++ b/frontend/src/components/user-settings/user-basic-info-form.js
@@ -5,7 +5,8 @@ import { gettext } from '../../utils/constants';
 const {
   nameLabel,
   enableUpdateUserInfo,
-  enableUserSetContactEmail
+  enableUserSetContactEmail,
+  enableUserSetName
 } = window.app.pageOptions;
 
 class UserBasicInfoForm extends React.Component {
@@ -38,9 +39,10 @@ class UserBasicInfoForm extends React.Component {
 
   handleSubmit = (e) => {
     e.preventDefault();
-    let data = {
-      name: this.state.name
-    };
+    let data = {};
+    if (enableUserSetName) {
+      data.name = this.state.name;
+    }
     if (enableUserSetContactEmail) {
       data.contact_email = this.state.contactEmail;
     }
@@ -60,7 +62,7 @@ class UserBasicInfoForm extends React.Component {
         <div className="form-group row">
           <label className="col-sm-1 col-form-label" htmlFor="name">{nameLabel}</label>
           <div className="col-sm-5">
-            <input className="form-control" id="name" type="text" name="nickname" value={name} disabled={!enableUpdateUserInfo} onChange={this.handleNameInputChange} />
+            <input className="form-control" id="name" type="text" name="nickname" value={name} disabled={!enableUpdateUserInfo || !enableUserSetName} onChange={this.handleNameInputChange} />
           </div>
         </div>
 
diff --git a/frontend/src/utils/constants.js b/frontend/src/utils/constants.js
index d77fe24b1d..4ac5f7bb07 100644
--- a/frontend/src/utils/constants.js
+++ b/frontend/src/utils/constants.js
@@ -78,6 +78,7 @@ export const canInvitePeople = window.app.pageOptions.canInvitePeople;
 export const canLockUnlockFile = window.app.pageOptions.canLockUnlockFile;
 export const customNavItems = window.app.pageOptions.customNavItems;
 export const enableShowContactEmailWhenSearchUser = window.app.pageOptions.enableShowContactEmailWhenSearchUser;
+export const enableShowLoginIDWhenSearchUser = window.app.pageOptions.enableShowLoginIDWhenSearchUser;
 export const maxUploadFileSize = window.app.pageOptions.maxUploadFileSize;
 export const maxNumberOfFilesForFileupload = window.app.pageOptions.maxNumberOfFilesForFileupload;
 export const enableOCM = window.app.pageOptions.enableOCM;
diff --git a/seahub/api2/endpoints/search_user.py b/seahub/api2/endpoints/search_user.py
index d4afbbbbb8..89e4df31f3 100644
--- a/seahub/api2/endpoints/search_user.py
+++ b/seahub/api2/endpoints/search_user.py
@@ -27,7 +27,7 @@ from seahub.contacts.models import Contact
 from seahub.avatar.templatetags.avatar_tags import api_avatar_url
 
 from seahub.settings import ENABLE_GLOBAL_ADDRESSBOOK, \
-    ENABLE_SEARCH_FROM_LDAP_DIRECTLY
+    ENABLE_SEARCH_FROM_LDAP_DIRECTLY, ENABLE_SHOW_LOGIN_ID_WHEN_SEARCH_USER
 
 logger = logging.getLogger(__name__)
 
@@ -175,15 +175,21 @@ class SearchUser(APIView):
 
 def format_searched_user_result(request, users, size):
     results = []
+    if ENABLE_SHOW_LOGIN_ID_WHEN_SEARCH_USER:
+        profile_queryset = Profile.objects.filter(user__in=users)
+        profile_dict = { p.user: p.login_id for p in profile_queryset if p.login_id }
 
     for email in users:
         url, is_default, date_uploaded = api_avatar_url(email, size)
-        results.append({
+        user_info = {
             "email": email,
             "avatar_url": url,
             "name": email2nickname(email),
             "contact_email": email2contact_email(email),
-        })
+        }
+        if ENABLE_SHOW_LOGIN_ID_WHEN_SEARCH_USER:
+            user_info['login_id'] = profile_dict.get(email, '')
+        results.append(user_info)
 
     return results
 
diff --git a/seahub/api2/endpoints/user.py b/seahub/api2/endpoints/user.py
index 24bedba1fe..203a758603 100644
--- a/seahub/api2/endpoints/user.py
+++ b/seahub/api2/endpoints/user.py
@@ -19,7 +19,8 @@ from seahub.api2.utils import api_error
 from seahub.base.templatetags.seahub_tags import email2nickname, \
         email2contact_email
 from seahub.profile.models import Profile, DetailedProfile
-from seahub.settings import ENABLE_UPDATE_USER_INFO, ENABLE_USER_SET_CONTACT_EMAIL, ENABLE_CONVERT_TO_TEAM_ACCOUNT
+from seahub.settings import ENABLE_UPDATE_USER_INFO, ENABLE_USER_SET_CONTACT_EMAIL, ENABLE_CONVERT_TO_TEAM_ACCOUNT, \
+    ENABLE_USER_SET_NAME
 
 import seaserv
 from seaserv import ccnet_api, seafile_api
@@ -85,6 +86,9 @@ class User(APIView):
         # argument check for name
         name = request.data.get("name", None)
         if name:
+            if not ENABLE_USER_SET_NAME:
+                error_msg = _('Feature disabled.')
+                return api_error(status.HTTP_403_FORBIDDEN, error_msg)
             name = name.strip()
             if len(name) > 64:
                 error_msg = _('Name is too long (maximum is 64 characters)')
diff --git a/seahub/profile/templates/profile/set_profile_react.html b/seahub/profile/templates/profile/set_profile_react.html
index be5467cc6b..d723d48320 100644
--- a/seahub/profile/templates/profile/set_profile_react.html
+++ b/seahub/profile/templates/profile/set_profile_react.html
@@ -19,6 +19,7 @@ window.app.pageOptions = {
   enableUpdateUserInfo: {% if ENABLE_UPDATE_USER_INFO %} true {% else %} false {% endif %},
   nameLabel: "{% trans "Name:" context "true name" %}",
   enableUserSetContactEmail: {% if ENABLE_USER_SET_CONTACT_EMAIL %} true {% else %} false {% endif %},
+  enableUserSetName: {% if ENABLE_USER_SET_NAME %} true {% else %} false {% endif %},
 
   canUpdatePassword: {% if not is_ldap_user and ENABLE_CHANGE_PASSWORD %} true {% else %} false {% endif %},
   {% if not is_ldap_user and ENABLE_CHANGE_PASSWORD %}
diff --git a/seahub/profile/views.py b/seahub/profile/views.py
index 9587242a99..d01e023b3d 100644
--- a/seahub/profile/views.py
+++ b/seahub/profile/views.py
@@ -164,6 +164,7 @@ def edit_profile(request):
             'enable_dingtalk': enable_dingtalk,
             'social_connected_dingtalk': social_connected_dingtalk,
             'ENABLE_USER_SET_CONTACT_EMAIL': settings.ENABLE_USER_SET_CONTACT_EMAIL,
+            'ENABLE_USER_SET_NAME': settings.ENABLE_USER_SET_NAME,
             'user_unusable_password': request.user.enc_password == UNUSABLE_PASSWORD,
             'enable_adfs': enable_adfs,
             'saml_connected': saml_connected,
diff --git a/seahub/settings.py b/seahub/settings.py
index 70abb8f427..f6cab4dd86 100644
--- a/seahub/settings.py
+++ b/seahub/settings.py
@@ -313,6 +313,7 @@ ENABLE_OAUTH = False
 ENABLE_WATERMARK = False
 
 ENABLE_SHOW_CONTACT_EMAIL_WHEN_SEARCH_USER = False
+ENABLE_SHOW_LOGIN_ID_WHEN_SEARCH_USER = False
 
 # enable work weixin
 ENABLE_WORK_WEIXIN = False
@@ -760,6 +761,7 @@ WEBDAV_SECRET_MIN_LENGTH = 1
 WEBDAV_SECRET_STRENGTH_LEVEL = 1
 
 ENABLE_USER_SET_CONTACT_EMAIL = False
+ENABLE_USER_SET_NAME = True
 
 # SSO to thirdparty website
 ENABLE_SSO_TO_THIRDPART_WEBSITE = False
diff --git a/seahub/templates/base_for_react.html b/seahub/templates/base_for_react.html
index b87bf56e8e..37d702162b 100644
--- a/seahub/templates/base_for_react.html
+++ b/seahub/templates/base_for_react.html
@@ -125,6 +125,7 @@
             canInvitePeople: {% if enable_guest_invitation and user.permissions.can_invite_guest %} true {% else %} false {% endif %},
             customNavItems: {% if custom_nav_items %} JSON.parse('{{ custom_nav_items | escapejs }}') {% else %} {{'[]'}} {% endif %},
             enableShowContactEmailWhenSearchUser: {% if enable_show_contact_email_when_search_user %} true {% else %} false {% endif %},
+            enableShowLoginIDWhenSearchUser: {% if enable_show_login_id_when_search_user %} true {% else %} false {% endif %},
             {% if max_upload_file_size > 0 %}
             maxUploadFileSize: {{ max_upload_file_size }},
             {% endif %}
diff --git a/seahub/views/__init__.py b/seahub/views/__init__.py
index 2f7d1c6c0f..62dc767fda 100644
--- a/seahub/views/__init__.py
+++ b/seahub/views/__init__.py
@@ -1081,6 +1081,7 @@ def react_fake_view(request, **kwargs):
         'file_audit_enabled': FILE_AUDIT_ENABLED,
         'custom_nav_items': json.dumps(CUSTOM_NAV_ITEMS),
         'enable_show_contact_email_when_search_user': settings.ENABLE_SHOW_CONTACT_EMAIL_WHEN_SEARCH_USER,
+        'enable_show_login_id_when_search_user': settings.ENABLE_SHOW_LOGIN_ID_WHEN_SEARCH_USER,
         'additional_share_dialog_note': ADDITIONAL_SHARE_DIALOG_NOTE,
         'additional_app_bottom_links': ADDITIONAL_APP_BOTTOM_LINKS,
         'additional_about_dialog_links': ADDITIONAL_ABOUT_DIALOG_LINKS,