diff --git a/modules/storage/obs.go b/modules/storage/obs.go
index 239580adb..c25787703 100755
--- a/modules/storage/obs.go
+++ b/modules/storage/obs.go
@@ -6,6 +6,7 @@ package storage
 
 import (
 	"io"
+	"net/url"
 	"path"
 	"strconv"
 	"strings"
@@ -262,6 +263,7 @@ func GetObsCreateSignedUrl(jobName, parentDir, fileName string) (string, error)
 	input.Method = obs.HttpMethodGet
 
 	reqParams := make(map[string]string)
+	fileName = url.QueryEscape(fileName)
 	reqParams["response-content-disposition"] = "attachment; filename=\"" + fileName + "\""
 	input.QueryParams = reqParams
 	output, err := ObsCli.CreateSignedUrl(input)