diff --git a/pkg/serializer/file.go b/pkg/serializer/file.go
new file mode 100644
index 0000000..1103778
--- /dev/null
+++ b/pkg/serializer/file.go
@@ -0,0 +1,10 @@
+package serializer
+
+// UploadPolicy slave模式下传递的上传策略
+type UploadPolicy struct {
+	SavePath         string   `json:"save_path"`
+	MaxSize          uint64   `json:"save_path"`
+	AllowedExtension []string `json:"allowed_extension"`
+	CallbackURL      string   `json:"callback_url"`
+	CallbackKey      string   `json:"callback_key"`
+}