diff --git a/apps/assets/signals_handler.py b/apps/assets/signals_handler.py
index c3f0e979d..1c2813aa9 100644
--- a/apps/assets/signals_handler.py
+++ b/apps/assets/signals_handler.py
@@ -58,7 +58,8 @@ def on_asset_created_or_update(sender, instance=None, created=False, **kwargs):
 
 
 @receiver(post_save, sender=SystemUser, dispatch_uid="jms")
-def on_system_user_update(sender, instance=None, created=True, **kwargs):
+@on_transaction_commit
+def on_system_user_update(instance: SystemUser, created, **kwargs):
     """
     当系统用户更新时，可能更新了秘钥，用户名等，这时要自动推送系统用户到资产上,
     其实应该当 用户名，密码，秘钥 sudo等更新时再推送，这里偷个懒,
@@ -68,26 +69,25 @@ def on_system_user_update(sender, instance=None, created=True, **kwargs):
     if instance and not created:
         logger.info("System user update signal recv: {}".format(instance))
         assets = instance.assets.all().valid()
-        push_system_user_to_assets.delay(instance, assets)
+        push_system_user_to_assets.delay(instance.id, [_asset.id for _asset in assets])
 
 
 @receiver(m2m_changed, sender=SystemUser.assets.through)
-def on_system_user_assets_change(sender, instance=None, action='', model=None, pk_set=None, **kwargs):
+def on_system_user_assets_change(instance, action, model, pk_set, **kwargs):
     """
     当系统用户和资产关系发生变化时，应该重新推送系统用户到新添加的资产中
     """
     if action != POST_ADD:
         return
     logger.debug("System user assets change signal recv: {}".format(instance))
-    queryset = model.objects.filter(pk__in=pk_set)
     if model == Asset:
-        system_users = [instance]
-        assets = queryset
+        system_users_id = [instance.id]
+        assets_id = pk_set
     else:
-        system_users = queryset
-        assets = [instance]
-    for system_user in system_users:
-        push_system_user_to_assets.delay(system_user, assets)
+        system_users_id = pk_set
+        assets_id = [instance.id]
+    for system_user_id in system_users_id:
+        push_system_user_to_assets.delay(system_user_id, assets_id)
 
 
 @receiver(m2m_changed, sender=SystemUser.users.through)
diff --git a/apps/assets/tasks/push_system_user.py b/apps/assets/tasks/push_system_user.py
index 7fc7bdab2..efb86d892 100644
--- a/apps/assets/tasks/push_system_user.py
+++ b/apps/assets/tasks/push_system_user.py
@@ -2,7 +2,7 @@
 
 from itertools import groupby
 from celery import shared_task
-from common.db.utils import get_object_if_need, get_objects_if_need
+from common.db.utils import get_object_if_need, get_objects_if_need, get_objects
 from django.utils.translation import ugettext as _
 from django.db.models import Empty
 
@@ -240,10 +240,10 @@ def push_system_user_a_asset_manual(system_user, asset, username=None):
 
 
 @shared_task(queue="ansible")
-def push_system_user_to_assets(system_user, assets, username=None):
+def push_system_user_to_assets(system_user_id, assets_id, username=None):
+    system_user = SystemUser.objects.get(id=system_user_id)
+    assets = get_objects(Asset, assets_id)
     task_name = _("Push system users to assets: {}").format(system_user.name)
-    system_user = get_object_if_need(SystemUser, system_user)
-    assets = get_objects_if_need(Asset, assets)
     return push_system_user_util(system_user, assets, task_name, username=username)
 
 # @shared_task
diff --git a/apps/common/db/utils.py b/apps/common/db/utils.py
index b71b27906..e8b6f8872 100644
--- a/apps/common/db/utils.py
+++ b/apps/common/db/utils.py
@@ -25,3 +25,16 @@ def get_objects_if_need(model, pks):
             logger.error(f'DoesNotExist: <{model.__name__}: {not_found_pks}>')
         return objs
     return pks
+
+
+def get_objects(model, pks):
+    if not pks:
+        return pks
+
+    objs = list(model.objects.filter(id__in=pks))
+    if len(objs) != len(pks):
+        pks = set(pks)
+        exists_pks = {o.id for o in objs}
+        not_found_pks = ','.join(pks - exists_pks)
+        logger.error(f'DoesNotExist: <{model.__name__}: {not_found_pks}>')
+    return objs