diff --git a/modules/storage/obs.go b/modules/storage/obs.go
index 08a354359..44de3a25e 100755
--- a/modules/storage/obs.go
+++ b/modules/storage/obs.go
@@ -59,21 +59,55 @@ func ObsHasObject(path string) (bool, error) {
 	return hasObject, nil
 }
 
+func listAllParts(uuid, uploadID, key string) (output *obs.ListPartsOutput, err error) {
+	output = nil
+	partNumberMarker := 0
+	for {
+		temp, err := ObsCli.ListParts(&obs.ListPartsInput{
+			Bucket:           setting.Bucket,
+			Key:              key,
+			UploadId:         uploadID,
+			MaxParts:         MAX_LIST_PARTS,
+			PartNumberMarker: partNumberMarker,
+		})
+		if err != nil {
+			log.Error("ListParts failed:", err.Error())
+			return output, err
+		}
+
+		partNumberMarker = temp.NextPartNumberMarker
+		log.Info("uuid:%s, MaxParts:%d, PartNumberMarker:%d, NextPartNumberMarker:%d, len:%d", uuid, temp.MaxParts, temp.PartNumberMarker, temp.NextPartNumberMarker, len(temp.Parts))
+
+		for _, partInfo := range temp.Parts {
+			output.Parts = append(output.Parts, obs.Part{
+				PartNumber: partInfo.PartNumber,
+				ETag:       partInfo.ETag,
+			})
+		}
+
+		if len(temp.Parts) < temp.MaxParts {
+			break
+		} else {
+			continue
+		}
+
+		break
+	}
+
+	return output, nil
+}
+
 func GetObsPartInfos(uuid, uploadID, fileName string) (string, error) {
 	key := strings.TrimPrefix(path.Join(setting.BasePath, path.Join(uuid[0:1], uuid[1:2], uuid, fileName)), "/")
 
-	output, err := ObsCli.ListParts(&obs.ListPartsInput{
-		Bucket:   setting.Bucket,
-		Key:      key,
-		UploadId: uploadID,
-	})
+	allParts, err := listAllParts(uuid, uploadID, key)
 	if err != nil {
-		log.Error("ListParts failed:", err.Error())
+		log.Error("listAllParts failed: %v", err)
 		return "", err
 	}
 
 	var chunks string
-	for _, partInfo := range output.Parts {
+	for _, partInfo := range allParts.Parts {
 		chunks += strconv.Itoa(partInfo.PartNumber) + "-" + partInfo.ETag + ","
 	}
 
@@ -100,39 +134,14 @@ func CompleteObsMultiPartUpload(uuid, uploadID, fileName string) error {
 	input.Key = strings.TrimPrefix(path.Join(setting.BasePath, path.Join(uuid[0:1], uuid[1:2], uuid, fileName)), "/")
 	input.UploadId = uploadID
 
-	partNumberMarker := 0
-	for {
-		output, err := ObsCli.ListParts(&obs.ListPartsInput{
-			Bucket:           setting.Bucket,
-			Key:              input.Key,
-			UploadId:         uploadID,
-			MaxParts:         MAX_LIST_PARTS,
-			PartNumberMarker: partNumberMarker,
-		})
-		if err != nil {
-			log.Error("ListParts failed:", err.Error())
-			return err
-		}
-
-		partNumberMarker = output.NextPartNumberMarker
-		log.Info("uuid:%s, MaxParts:%d, PartNumberMarker:%d, NextPartNumberMarker:%d, len:%d", uuid, output.MaxParts, output.PartNumberMarker, output.NextPartNumberMarker, len(output.Parts))
-
-		for _, partInfo := range output.Parts {
-			input.Parts = append(input.Parts, obs.Part{
-				PartNumber: partInfo.PartNumber,
-				ETag:       partInfo.ETag,
-			})
-		}
-
-		if len(output.Parts) < output.MaxParts {
-			break
-		} else {
-			continue
-		}
-
-		break
+	allParts, err := listAllParts(uuid, uploadID, input.Key)
+	if err != nil {
+		log.Error("listAllParts failed: %v", err)
+		return err
 	}
 
+	input.Parts = allParts.Parts
+
 	output, err := ObsCli.CompleteMultipartUpload(input)
 	if err != nil {
 		log.Error("CompleteMultipartUpload failed:", err.Error())