diff --git a/server/upload/internal/logic/uploadlogologic.go b/server/upload/internal/logic/uploadlogologic.go
index bd495c61..0318e245 100644
--- a/server/upload/internal/logic/uploadlogologic.go
+++ b/server/upload/internal/logic/uploadlogologic.go
@@ -95,6 +95,12 @@ func (l *UploadLogoLogic) UploadLogo(req *types.UploadLogoReq, userinfo *auth.Us
 		return resp.SetStatus(basic.CodeFileUploadErr, "file upload err,file is not image")
 	}
 
+	// 限制上传文件大小 50k
+	maxSize := 100 * 1024
+	if fileHeader.Size > int64(maxSize) {
+		return resp.SetStatus(basic.CodeFileUploadErr, "file upload err,The file size exceeds the maximum limit of 100k")
+	}
+
 	// 读取数据流
 	ioData, err := io.ReadAll(fileObject)
 	if err != nil {