diff --git a/pkg/compute/models/dbinstances.go b/pkg/compute/models/dbinstances.go
index 079cd574fd..8371bcfe2e 100644
--- a/pkg/compute/models/dbinstances.go
+++ b/pkg/compute/models/dbinstances.go
@@ -1642,17 +1642,31 @@ func (manager *SDBInstanceManager) newFromCloudDBInstance(ctx context.Context, u
 	return &instance, nil
 }
 
+type SRdsCountStat struct {
+	TotalRdsCount  int
+	TotalCpuCount  int
+	TotalMemSizeMb int
+}
+
 func (man *SDBInstanceManager) TotalCount(
 	scope rbacutils.TRbacScope,
 	ownerId mcclient.IIdentityProvider,
 	rangeObjs []db.IStandaloneModel,
 	providers []string, brands []string, cloudEnv string,
-) (int, error) {
-	q := man.Query()
+) (SRdsCountStat, error) {
+	sq := man.Query().SubQuery()
+	q := sq.Query(sqlchemy.COUNT("total_rds_count"),
+		sqlchemy.SUM("total_cpu_count", sq.Field("vcpu_count")),
+		sqlchemy.SUM("total_mem_size_mb", sq.Field("vmem_size_mb")))
+
 	q = scopeOwnerIdFilter(q, scope, ownerId)
 	q = CloudProviderFilter(q, q.Field("manager_id"), providers, brands, cloudEnv)
 	q = RangeObjectsFilter(q, rangeObjs, q.Field("cloudregion_id"), nil, q.Field("manager_id"), nil, nil)
-	return q.CountWithError()
+
+	stat := SRdsCountStat{}
+	row := q.Row()
+	err := q.Row2Struct(row, &stat)
+	return stat, err
 }
 
 func (dbinstance *SDBInstance) GetQuotaKeys() quotas.IQuotaKeys {
diff --git a/pkg/compute/models/regionquota.go b/pkg/compute/models/regionquota.go
index 53af1cab66..c7362ff6f8 100644
--- a/pkg/compute/models/regionquota.go
+++ b/pkg/compute/models/regionquota.go
@@ -196,7 +196,8 @@ func (self *SRegionQuota) FetchUsage(ctx context.Context) error {
 	self.ObjectGB = int(bucketUsage.Bytes / 1000 / 1000 / 1000)
 	self.ObjectCnt = bucketUsage.Objects
 
-	self.Rds, _ = DBInstanceManager.TotalCount(scope, ownerId, rangeObjs, providers, brands, regionKeys.CloudEnv)
+	rdsUsage, _ := DBInstanceManager.TotalCount(scope, ownerId, rangeObjs, providers, brands, regionKeys.CloudEnv)
+	self.Rds = rdsUsage.TotalRdsCount
 	self.Cache, _ = ElasticcacheManager.TotalCount(scope, ownerId, rangeObjs, providers, brands, regionKeys.CloudEnv)
 
 	self.Loadbalancer, _ = LoadbalancerManager.TotalCount(scope, ownerId, rangeObjs, providers, brands, regionKeys.CloudEnv)
diff --git a/pkg/compute/usages/handler.go b/pkg/compute/usages/handler.go
index fe71d626ae..d5b8a23c4d 100644
--- a/pkg/compute/usages/handler.go
+++ b/pkg/compute/usages/handler.go
@@ -874,7 +874,9 @@ func LoadbalancerUsage(scope rbacutils.TRbacScope, ownerId mcclient.IIdentityPro
 func DBInstanceUsage(scope rbacutils.TRbacScope, ownerId mcclient.IIdentityProvider, rangeObjs []db.IStandaloneModel, providers []string, brands []string, cloudEnv string) Usage {
 	cnt, _ := models.DBInstanceManager.TotalCount(scope, ownerId, rangeObjs, providers, brands, cloudEnv)
 	count := make(map[string]interface{})
-	count[getKey(scope, "rds")] = cnt
+	count[getKey(scope, "rds")] = cnt.TotalRdsCount
+	count[getKey(scope, "rds.cpu")] = cnt.TotalCpuCount
+	count[getKey(scope, "rds.memory")] = cnt.TotalMemSizeMb
 	return count
 }