diff --git a/pkg/compute/guestdrivers/managedvirtual.go b/pkg/compute/guestdrivers/managedvirtual.go
index 9b68885230..5567a54aee 100644
--- a/pkg/compute/guestdrivers/managedvirtual.go
+++ b/pkg/compute/guestdrivers/managedvirtual.go
@@ -152,6 +152,10 @@ func (self *SManagedVirtualizedGuestDriver) RequestDetachDisk(ctx context.Contex
 	taskman.LocalTaskRun(task, func() (jsonutils.JSONObject, error) {
 		iVM, err := guest.GetIVM()
 		if err != nil {
+			//若guest被删除,忽略错误，否则会无限删除guest失败(有挂载的云盘)
+			if err == cloudprovider.ErrNotFound {
+				return nil, nil
+			}
 			return nil, errors.Wrapf(err, "guest.GetIVM")
 		}
 		if len(disk.ExternalId) == 0 {
@@ -522,6 +526,10 @@ func (self *SManagedVirtualizedGuestDriver) RequestUndeployGuestOnHost(ctx conte
 	taskman.LocalTaskRun(task, func() (jsonutils.JSONObject, error) {
 		ihost, err := host.GetIHost()
 		if err != nil {
+			//私有云宿主机有可能下线,会导致虚拟机无限删除失败
+			if err == cloudprovider.ErrNotFound {
+				return nil, nil
+			}
 			log.Errorf("host.GetIHost fail %s", err)
 			return nil, err
 		}
diff --git a/pkg/compute/models/hosts.go b/pkg/compute/models/hosts.go
index ae4d7b72b8..fca810877b 100644
--- a/pkg/compute/models/hosts.go
+++ b/pkg/compute/models/hosts.go
@@ -2198,6 +2198,9 @@ func (self *SHost) GetIHostAndProvider() (cloudprovider.ICloudHost, cloudprovide
 	}
 	ihost, err := iregion.GetIHostById(self.ExternalId)
 	if err != nil {
+		if err == cloudprovider.ErrNotFound {
+			return nil, nil, cloudprovider.ErrNotFound
+		}
 		log.Errorf("fail to find ihost by id %s %s", self.ExternalId, err)
 		return nil, nil, fmt.Errorf("fail to find ihost by id %s", err)
 	}