diff --git a/routers/admin/resources.go b/routers/admin/resources.go
index f6689acd4..026c37e52 100644
--- a/routers/admin/resources.go
+++ b/routers/admin/resources.go
@@ -141,8 +141,7 @@ func GetAllResourceSpecificationList(ctx *context.Context) {
 	status := ctx.QueryInt("status")
 	cluster := ctx.Query("cluster")
 	available := ctx.QueryInt("available")
-	list, err := resource.GetResourceSpecificationList(models.SearchResourceSpecificationOptions{
-		ListOptions:   models.ListOptions{Page: 1, PageSize: 1000},
+	list, err := resource.GetAllDistinctResourceSpecification(models.SearchResourceSpecificationOptions{
 		QueueId:       queue,
 		Status:        status,
 		Cluster:       cluster,
@@ -153,6 +152,7 @@ func GetAllResourceSpecificationList(ctx *context.Context) {
 		ctx.JSON(http.StatusOK, response.ServerError(err.Error()))
 		return
 	}
+
 	ctx.JSON(http.StatusOK, response.SuccessWithData(list))
 }
 
diff --git a/services/cloudbrain/resource/resource_specification.go b/services/cloudbrain/resource/resource_specification.go
index c3c75419f..d23fd3aad 100644
--- a/services/cloudbrain/resource/resource_specification.go
+++ b/services/cloudbrain/resource/resource_specification.go
@@ -130,10 +130,48 @@ func GetResourceSpecificationList(opts models.SearchResourceSpecificationOptions
 	if err != nil {
 		return nil, err
 	}
-
 	return models.NewResourceSpecAndQueueListRes(n, r), nil
 }
 
+//GetAllDistinctResourceSpecification returns specification and queue after distinct
+//totalSize is always 0 here
+func GetAllDistinctResourceSpecification(opts models.SearchResourceSpecificationOptions) (*models.ResourceSpecAndQueueListRes, error) {
+	opts.Page = 0
+	opts.PageSize = 1000
+	_, r, err := models.SearchResourceSpecification(opts)
+	if err != nil {
+		return nil, err
+	}
+	nr := distinctResourceSpecAndQueue(r)
+	return models.NewResourceSpecAndQueueListRes(0, nr), nil
+}
+
+func distinctResourceSpecAndQueue(r []models.ResourceSpecAndQueue) []models.ResourceSpecAndQueue {
+	specs := make([]models.ResourceSpecAndQueue, 0, len(r))
+	sourceSpecIdMap := make(map[string]models.ResourceSpecAndQueue, 0)
+	for i := 0; i < len(r); i++ {
+		spec := r[i]
+		if spec.SourceSpecId == "" {
+			specs = append(specs, spec)
+			continue
+		}
+		if _, has := sourceSpecIdMap[spec.SourceSpecId]; has {
+			//prefer to use on-shelf spec
+			if sourceSpecIdMap[spec.SourceSpecId].Status != spec.Status && spec.Status == models.SpecOnShelf {
+				for k, v := range specs {
+					if v.ResourceSpecification.ID == sourceSpecIdMap[spec.SourceSpecId].ResourceSpecification.ID {
+						specs[k] = spec
+					}
+				}
+			}
+			continue
+		}
+		specs = append(specs, spec)
+		sourceSpecIdMap[spec.SourceSpecId] = spec
+	}
+	return specs
+}
+
 func GetResourceSpecificationScenes(specId int64) ([]models.ResourceSceneBriefRes, error) {
 	r, err := models.GetSpecScenes(specId)
 	if err != nil {