diff --git a/apps/assets/models/authbook.py b/apps/assets/models/authbook.py
index c4e39bcd4..180dc90f7 100644
--- a/apps/assets/models/authbook.py
+++ b/apps/assets/models/authbook.py
@@ -5,9 +5,12 @@ from django.db import models
 from django.utils.translation import ugettext_lazy as _
 from simple_history.models import HistoricalRecords
 
-from common.utils import lazyproperty
+from common.utils import lazyproperty, get_logger
 from .base import BaseUser, AbsConnectivity
 
+logger = get_logger(__name__)
+
+
 __all__ = ['AuthBook']
 
 
@@ -93,6 +96,24 @@ class AuthBook(BaseUser, AbsConnectivity):
             i.comment = 'Update triggered by account {}'.format(self.id)
             i.save(update_fields=['password', 'private_key', 'public_key'])
 
+    def remove_asset_admin_user_if_need(self):
+        if not self.asset or not self.asset.admin_user:
+            return
+        if not self.systemuser.is_admin_user:
+            return
+        logger.debug('Remove asset admin user: {} {}'.format(self.asset, self.systemuser))
+        self.asset.admin_user = None
+        self.asset.save()
+
+    def update_asset_admin_user_if_need(self):
+        if not self.systemuser or not self.systemuser.is_admin_user:
+            return
+        if not self.asset or self.asset.admin_user == self.systemuser:
+            return
+        logger.debug('Update asset admin user: {} {}'.format(self.asset, self.systemuser))
+        self.asset.admin_user = self.systemuser
+        self.asset.save()
+
     def __str__(self):
         return self.smart_name
 
diff --git a/apps/assets/signals_handler/authbook.py b/apps/assets/signals_handler/authbook.py
index 2a149d57a..7564e738d 100644
--- a/apps/assets/signals_handler/authbook.py
+++ b/apps/assets/signals_handler/authbook.py
@@ -1,7 +1,7 @@
 from django.dispatch import receiver
 from django.apps import apps
 from simple_history.signals import pre_create_historical_record
-from django.db.models.signals import post_save, pre_save
+from django.db.models.signals import post_save, pre_save, post_delete
 
 from common.utils import get_logger
 from ..models import AuthBook, SystemUser
@@ -28,10 +28,15 @@ def pre_create_historical_record_callback(sender, history_instance=None, **kwarg
             setattr(history_instance, attr, system_user_attr_value)
 
 
+@receiver(post_delete, sender=AuthBook)
+def on_authbook_post_delete(sender, instance, **kwargs):
+    instance.remove_asset_admin_user_if_need()
+
+
 @receiver(post_save, sender=AuthBook)
 def on_authbook_post_create(sender, instance, **kwargs):
-    if not instance.systemuser:
-        instance.sync_to_system_user_account()
+    instance.sync_to_system_user_account()
+    instance.update_asset_admin_user_if_need()
 
 
 @receiver(pre_save, sender=AuthBook)