diff --git a/models/resource_specification.go b/models/resource_specification.go
index dca6647ab..10ae7f7bc 100644
--- a/models/resource_specification.go
+++ b/models/resource_specification.go
@@ -22,6 +22,7 @@ type ResourceSpecification struct {
 	ShareMemGiB     float32
 	UnitPrice       int
 	Status          int
+	IsAvailable     bool
 	IsAutomaticSync bool
 	CreatedTime     timeutil.TimeStamp `xorm:"created"`
 	CreatedBy       int64
@@ -40,6 +41,7 @@ func (r ResourceSpecification) ConvertToRes() *ResourceSpecificationRes {
 		GPUMemGiB:    r.GPUMemGiB,
 		UnitPrice:    r.UnitPrice,
 		Status:       r.Status,
+		IsAvailable:  r.IsAvailable,
 		UpdatedTime:  r.UpdatedTime,
 	}
 }
@@ -72,6 +74,7 @@ func (r ResourceSpecificationReq) ToDTO() ResourceSpecification {
 		IsAutomaticSync: r.IsAutomaticSync,
 		CreatedBy:       r.CreatorId,
 		UpdatedBy:       r.CreatorId,
+		IsAvailable:     true,
 	}
 }
 
@@ -113,6 +116,7 @@ type ResourceSpecificationRes struct {
 	ShareMemGiB  float32
 	UnitPrice    int
 	Status       int
+	IsAvailable  bool
 	UpdatedTime  timeutil.TimeStamp
 }
 
@@ -256,7 +260,7 @@ func SyncGrampusSpecs(updateList []ResourceSpecification, insertList []ResourceS
 		return err
 	}
 	if len(deleteIds) > 0 {
-		if _, err = sess.In("id", deleteIds).Update(&ResourceSpecification{Status: SpecOffShelf}); err != nil {
+		if _, err = sess.In("id", deleteIds).Update(&ResourceSpecification{Status: SpecOffShelf, IsAvailable: false}); err != nil {
 			return err
 		}
 		if _, err = sess.In("spec_id", deleteIds).Delete(&ResourceSceneSpec{}); err != nil {
diff --git a/routers/response/response_list.go b/routers/response/response_list.go
index 5e057bfd0..6514f3edd 100644
--- a/routers/response/response_list.go
+++ b/routers/response/response_list.go
@@ -2,3 +2,4 @@ package response
 
 var RESOURCE_QUEUE_NOT_AVAILABLE = &BizError{Code: 1001, Err: "resource queue not available"}
 var SPECIFICATION_NOT_EXIST = &BizError{Code: 1002, Err: "specification not exist"}
+var SPECIFICATION_NOT_AVAILABLE = &BizError{Code: 1003, Err: "specification not available"}
diff --git a/services/cloudbrain/resource/resource_specification.go b/services/cloudbrain/resource/resource_specification.go
index 680b98933..1a1631686 100644
--- a/services/cloudbrain/resource/resource_specification.go
+++ b/services/cloudbrain/resource/resource_specification.go
@@ -92,6 +92,7 @@ func SyncGrampusSpecs(doerId int64) error {
 					GPUMemGiB:       gpuMemGiB,
 					Status:          models.SpecNotVerified,
 					IsAutomaticSync: true,
+					IsAvailable:     true,
 					CreatedBy:       doerId,
 					UpdatedBy:       doerId,
 				})
@@ -103,6 +104,7 @@ func SyncGrampusSpecs(doerId int64) error {
 					CpuCores:    spec.SpecInfo.CpuCoreNum,
 					MemGiB:      memGiB,
 					GPUMemGiB:   gpuMemGiB,
+					IsAvailable: true,
 					UpdatedBy:   doerId,
 				})
 			}
@@ -142,7 +144,9 @@ func ResourceSpecOnShelf(doerId int64, id int64, unitPrice int) *response.BizErr
 	if q, err := models.GetResourceQueue(&models.ResourceQueue{ID: spec.QueueId}); err != nil || q == nil {
 		return response.RESOURCE_QUEUE_NOT_AVAILABLE
 	}
-
+	if !spec.IsAvailable {
+		return response.SPECIFICATION_NOT_AVAILABLE
+	}
 	err = models.ResourceSpecOnShelf(id, unitPrice)
 	if err != nil {
 		return response.NewBizError(err)