diff --git a/pkg/apis/compute/vpcs_const.go b/pkg/apis/compute/vpcs_const.go
index 83c5b313ee..f48cefd7cc 100644
--- a/pkg/apis/compute/vpcs_const.go
+++ b/pkg/apis/compute/vpcs_const.go
@@ -33,6 +33,8 @@ const (
 
 	DEFAULT_VPC_ID = "default"
 	NORMAL_VPC_ID  = "normal" // 没有关联VPC的安全组，统一使用normal
+
+	CLASSIC_VPC_NAME = "-"
 )
 
 type UsableResourceListInput struct {
diff --git a/pkg/compute/models/loadbalancers.go b/pkg/compute/models/loadbalancers.go
index a986dd5f69..a852ee83a6 100644
--- a/pkg/compute/models/loadbalancers.go
+++ b/pkg/compute/models/loadbalancers.go
@@ -303,11 +303,11 @@ func (man *SLoadbalancerManager) ValidateCreateData(
 
 	var region *SCloudregion
 	if len(input.VpcId) > 0 {
-		var vpc *SVpc
-		vpc, input.VpcResourceInput, err = ValidateVpcResourceInput(userCred, input.VpcResourceInput)
+		_vpc, err := validators.ValidateModel(userCred, VpcManager, &input.VpcId)
 		if err != nil {
-			return nil, errors.Wrap(err, "ValidateVpcResourceInput")
+			return nil, err
 		}
+		vpc := _vpc.(*SVpc)
 		region, _ = vpc.GetRegion()
 	} else if len(input.ZoneId) > 0 {
 		var zone *SZone
diff --git a/pkg/compute/models/routetables.go b/pkg/compute/models/routetables.go
index ad4ec08863..9c4e8870bc 100644
--- a/pkg/compute/models/routetables.go
+++ b/pkg/compute/models/routetables.go
@@ -155,9 +155,9 @@ func (man *SRouteTableManager) ValidateCreateData(
 	if err != nil {
 		return input, errors.Wrap(err, "validateRoutes")
 	}
-	_, input.VpcResourceInput, err = ValidateVpcResourceInput(userCred, input.VpcResourceInput)
+	_, err = validators.ValidateModel(userCred, VpcManager, &input.VpcId)
 	if err != nil {
-		return input, errors.Wrap(err, "ValidateVpcResourceInput")
+		return input, err
 	}
 	input.StatusInfrasResourceBaseCreateInput, err = man.SStatusInfrasResourceBaseManager.ValidateCreateData(ctx, userCred, ownerId, query, input.StatusInfrasResourceBaseCreateInput)
 	if err != nil {
diff --git a/pkg/compute/models/scaling_group.go b/pkg/compute/models/scaling_group.go
index 1122266958..fb46c66a8e 100644
--- a/pkg/compute/models/scaling_group.go
+++ b/pkg/compute/models/scaling_group.go
@@ -31,6 +31,7 @@ import (
 	"yunion.io/x/onecloud/pkg/cloudcommon/db"
 	"yunion.io/x/onecloud/pkg/cloudcommon/db/lockman"
 	"yunion.io/x/onecloud/pkg/cloudcommon/db/taskman"
+	"yunion.io/x/onecloud/pkg/cloudcommon/validators"
 	"yunion.io/x/onecloud/pkg/httperrors"
 	"yunion.io/x/onecloud/pkg/mcclient"
 	"yunion.io/x/onecloud/pkg/util/logclient"
@@ -136,7 +137,7 @@ func (sgm *SScalingGroupManager) ValidateCreateData(ctx context.Context, userCre
 	input.CloudregionId = cloudregion.GetId()
 
 	// check vpc
-	_, input.VpcResourceInput, err = ValidateVpcResourceInput(userCred, input.VpcResourceInput)
+	_, err = validators.ValidateModel(userCred, VpcManager, &input.VpcId)
 	if err != nil {
 		return input, err
 	}
diff --git a/pkg/compute/models/vpcresource.go b/pkg/compute/models/vpcresource.go
index 5e7dd214cd..f5d8e436dd 100644
--- a/pkg/compute/models/vpcresource.go
+++ b/pkg/compute/models/vpcresource.go
@@ -16,7 +16,6 @@ package models
 
 import (
 	"context"
-	"database/sql"
 
 	"yunion.io/x/jsonutils"
 	"yunion.io/x/log"
@@ -26,6 +25,7 @@ import (
 
 	api "yunion.io/x/onecloud/pkg/apis/compute"
 	"yunion.io/x/onecloud/pkg/cloudcommon/db"
+	"yunion.io/x/onecloud/pkg/cloudcommon/validators"
 	"yunion.io/x/onecloud/pkg/cloudprovider"
 	"yunion.io/x/onecloud/pkg/httperrors"
 	"yunion.io/x/onecloud/pkg/mcclient"
@@ -46,19 +46,6 @@ type SVpcResourceBaseManager struct {
 	SManagedResourceBaseManager
 }
 
-func ValidateVpcResourceInput(userCred mcclient.TokenCredential, input api.VpcResourceInput) (*SVpc, api.VpcResourceInput, error) {
-	vpcObj, err := VpcManager.FetchByIdOrName(userCred, input.VpcId)
-	if err != nil {
-		if errors.Cause(err) == sql.ErrNoRows {
-			return nil, input, httperrors.NewResourceNotFoundError2(VpcManager.Keyword(), input.VpcId)
-		} else {
-			return nil, input, errors.Wrap(err, "VpcManager.FetchByIdOrName")
-		}
-	}
-	input.VpcId = vpcObj.GetId()
-	return vpcObj.(*SVpc), input, nil
-}
-
 func (self *SVpcResourceBase) GetVpc() *SVpc {
 	obj, _ := VpcManager.FetchById(self.VpcId)
 	if obj == nil {
@@ -180,11 +167,16 @@ func (manager *SVpcResourceBaseManager) ListItemFilter(
 ) (*sqlchemy.SQuery, error) {
 	var err error
 	if len(query.VpcId) > 0 {
-		vpcObj, _, err := ValidateVpcResourceInput(userCred, query.VpcResourceInput)
-		if err != nil {
-			return nil, errors.Wrap(err, "ValidateVpcResourceInput")
+		switch query.VpcId {
+		case api.CLASSIC_VPC_NAME:
+			q = q.Equals("name", api.CLASSIC_VPC_NAME)
+		default:
+			_, err := validators.ValidateModel(userCred, VpcManager, &query.VpcId)
+			if err != nil {
+				return nil, err
+			}
+			q = q.Equals("vpc_id", query.VpcId)
 		}
-		q = q.Equals("vpc_id", vpcObj.GetId())
 	}
 	subq := VpcManager.Query("id").Snapshot()
 	subq, err = manager.SCloudregionResourceBaseManager.ListItemFilter(ctx, subq, userCred, query.RegionalFilterListInput)
diff --git a/pkg/compute/models/vpcs.go b/pkg/compute/models/vpcs.go
index 73145e1abd..e43db856cd 100644
--- a/pkg/compute/models/vpcs.go
+++ b/pkg/compute/models/vpcs.go
@@ -287,7 +287,7 @@ func (manager *SVpcManager) GetOrCreateVpcForClassicNetwork(ctx context.Context,
 	vpc.IsDefault = false
 	vpc.CloudregionId = region.Id
 	vpc.SetModelManager(manager, vpc)
-	vpc.Name = "-"
+	vpc.Name = api.CLASSIC_VPC_NAME
 	vpc.IsEmulated = true
 	vpc.SetEnabled(false)
 	vpc.Status = api.VPC_STATUS_UNAVAILABLE
diff --git a/pkg/compute/models/wires.go b/pkg/compute/models/wires.go
index 47c64c6f4b..be6d30ee94 100644
--- a/pkg/compute/models/wires.go
+++ b/pkg/compute/models/wires.go
@@ -113,11 +113,11 @@ func (manager *SWireManager) ValidateCreateData(
 		input.VpcId = api.DEFAULT_VPC_ID
 	}
 
-	var vpc *SVpc
-	vpc, input.VpcResourceInput, err = ValidateVpcResourceInput(userCred, input.VpcResourceInput)
+	_vpc, err := validators.ValidateModel(userCred, VpcManager, &input.VpcId)
 	if err != nil {
-		return input, errors.Wrap(err, "ValidateVpcResourceInput")
+		return input, err
 	}
+	vpc := _vpc.(*SVpc)
 
 	if len(vpc.ManagerId) > 0 {
 		return input, httperrors.NewNotSupportedError("Currently only kvm platform supports creating wire")