diff --git a/frontend/src/pages/sys-admin/orgs/orgs-content.js b/frontend/src/pages/sys-admin/orgs/orgs-content.js
index e53a407299..82965bd73b 100644
--- a/frontend/src/pages/sys-admin/orgs/orgs-content.js
+++ b/frontend/src/pages/sys-admin/orgs/orgs-content.js
@@ -38,6 +38,7 @@ class Content extends Component {
 
   render() {
     const { loading, errorMsg, items } = this.props;
+    const colCreatedText = `${gettext('Created At')} / ${gettext('Last Access')}`;
     if (loading) {
       return <Loading />;
     } else if (errorMsg) {
@@ -57,7 +58,7 @@ class Content extends Component {
                 <th width="10%">{gettext('Status')}</th>
                 <th width="20%">{gettext('Role')}</th>
                 <th width="15%">{gettext('Space Used')}</th>
-                <th width="20%">{gettext('Created At')}</th>
+                <th width="20%">{colCreatedText}</th>
                 <th width="5%">{/* Operations */}</th>
               </tr>
             </thead>
@@ -255,7 +256,11 @@ class Item extends Component {
             />
           </td>
           <td>{`${Utils.bytesToSize(item.quota_usage)} / ${item.quota > 0 ? Utils.bytesToSize(item.quota) : '--'}`}</td>
-          <td>{dayjs(item.ctime).format('YYYY-MM-DD HH:mm:ss')}</td>
+          <td>
+            {`${dayjs(item.ctime).format('YYYY-MM-DD HH:mm:ss')} /`}
+            <br />
+            {`${item.last_activity_time ? dayjs(item.last_activity_time).fromNow() : '--'} `}
+          </td>
           <td>
             <a href="#" className={`action-icon sf3-font-delete1 sf3-font ${highlighted ? '' : 'invisible'}`} title={gettext('Delete')} onClick={this.toggleDeleteDialog}></a>
           </td>
diff --git a/seahub/api2/endpoints/admin/organizations.py b/seahub/api2/endpoints/admin/organizations.py
index 85b86af096..f254682c2f 100644
--- a/seahub/api2/endpoints/admin/organizations.py
+++ b/seahub/api2/endpoints/admin/organizations.py
@@ -15,10 +15,11 @@ from seahub.auth.utils import get_virtual_id_by_email
 from seahub.organizations.settings import ORG_MEMBER_QUOTA_DEFAULT
 from seahub.utils import is_valid_email
 from seahub.utils.file_size import get_file_size_unit
-from seahub.utils.timeutils import timestamp_to_isoformat_timestr
+from seahub.utils.timeutils import timestamp_to_isoformat_timestr, datetime_to_isoformat_timestr
 from seahub.base.templatetags.seahub_tags import email2nickname, \
         email2contact_email
 from seahub.base.accounts import User
+from seahub.base.models import OrgLastActivityTime
 from seahub.api2.authentication import TokenAuthentication
 from seahub.api2.throttling import UserRateThrottle
 from seahub.api2.utils import api_error
@@ -177,8 +178,16 @@ class AdminOrganizations(APIView):
             return api_error(status.HTTP_500_INTERNAL_SERVER_ERROR, error_msg)
 
         result = []
+        org_ids = [org.org_id for org in orgs]
+        orgs_last_activity = OrgLastActivityTime.objects.filter(org_id__in=org_ids)
+        orgs_last_activity_dict = {org.org_id:org.timestamp for org in orgs_last_activity}
         for org in orgs:
             org_info = get_org_info(org)
+            org_id = org_info['org_id']
+            if org_id in orgs_last_activity_dict:
+                org_info['last_activity_time'] = datetime_to_isoformat_timestr(orgs_last_activity_dict[org_id])
+            else:
+                org_info['last_activity_time'] = None
             result.append(org_info)
 
         return Response({'organizations': result, 'total_count': total_count})
diff --git a/seahub/auth/__init__.py b/seahub/auth/__init__.py
index b69abacf6a..da3fcc025d 100644
--- a/seahub/auth/__init__.py
+++ b/seahub/auth/__init__.py
@@ -7,8 +7,10 @@ from django.conf import settings
 from django.core.exceptions import ImproperlyConfigured
 
 from seahub.auth.signals import user_logged_in
+from seahub.organizations.signals import org_last_activity
 
 from constance import config
+from seaserv import ccnet_api
 
 SESSION_KEY = '_auth_user_name'
 BACKEND_SESSION_KEY = '_auth_user_backend_2'
@@ -106,6 +108,10 @@ def login(request, user, mobile_login=False):
     if hasattr(request, 'user'):
         request.user = user
     user_logged_in.send(sender=user.__class__, request=request, user=user)
+    orgs = ccnet_api.get_orgs_by_user(user.username)
+    if orgs:
+        org_id = orgs[0].org_id
+        org_last_activity.send(sender=user.__class__, org_id=org_id)
 
 def logout(request):
     """
diff --git a/seahub/base/models.py b/seahub/base/models.py
index 052c5e8819..97c5f9f676 100644
--- a/seahub/base/models.py
+++ b/seahub/base/models.py
@@ -9,6 +9,7 @@ from pysearpc import SearpcError
 from seaserv import seafile_api
 
 from seahub.auth.signals import user_logged_in
+from seahub.organizations.signals import org_last_activity
 from seahub.utils import within_time_range, gen_token, \
         normalize_file_path, normalize_dir_path
 from seahub.utils.timeutils import datetime_to_isoformat_timestr
@@ -305,6 +306,17 @@ def update_last_login(sender, user, **kwargs):
 
 user_logged_in.connect(update_last_login)
 
+class OrgLastActivityTime(models.Model):
+    org_id = models.IntegerField(unique=True, db_index=True)
+    timestamp = models.DateTimeField(default=timezone.now)
+
+    class Meta:
+        db_table = 'org_last_active_time'
+
+def update_org_last_activity_time(sender, org_id, **kwargs):
+    OrgLastActivityTime.objects.update_or_create(org_id=org_id, defaults={'timestamp': timezone.now})
+
+org_last_activity.connect(update_org_last_activity_time)
 
 class CommandsLastCheck(models.Model):
     """Record last check time for Django/custom commands.
diff --git a/seahub/organizations/signals.py b/seahub/organizations/signals.py
index e07618bbfa..2bb6788311 100644
--- a/seahub/organizations/signals.py
+++ b/seahub/organizations/signals.py
@@ -3,3 +3,4 @@ from django.dispatch import Signal
 
 # A new org is created
 org_created = Signal()
+org_last_activity = Signal()