diff --git a/platformapi/tbunionapi/sku.go b/platformapi/tbunionapi/sku.go
index 2e4db128..8137304d 100644
--- a/platformapi/tbunionapi/sku.go
+++ b/platformapi/tbunionapi/sku.go
@@ -39,13 +39,17 @@ type OptimusMaterialResult struct {
 }
 
 //物料精选
-func (a *API) OptimusMaterial(materialID, adzoneID, pageNo, pageSize int) (activityInfoGetResult []*OptimusMaterialResult, err error) {
-	result, err := a.AccessAPI("taobao.tbk.dg.optimus.material", false, map[string]interface{}{
+func (a *API) OptimusMaterial(itemID, materialID, adzoneID, pageNo, pageSize int) (activityInfoGetResult []*OptimusMaterialResult, err error) {
+	params := map[string]interface{}{
 		"material_id": materialID,
 		"adzone_id":   adzoneID,
 		"page_no":     pageNo,
 		"page_size":   pageSize,
-	})
+	}
+	if itemID != 0 {
+		params["item_id"] = itemID
+	}
+	result, err := a.AccessAPI("taobao.tbk.dg.optimus.material", false, params)
 	if err == nil {
 		utils.Map2StructByJson(result["result_list"], &activityInfoGetResult, false)
 	}