diff --git a/app/lib/qiniu/req_img_upload.go b/app/lib/qiniu/req_img_upload.go
index da122ea..23591d7 100644
--- a/app/lib/qiniu/req_img_upload.go
+++ b/app/lib/qiniu/req_img_upload.go
@@ -29,7 +29,7 @@ func ReqImgUpload(f *md.FileCallback, callbackUrl string) interface{} {
 		Expires:          Expires,
 		ForceSaveKey:     true,
 		SaveKey:          f.FileName,
-		MimeLimit:        "image/*", // 只允许上传图片
+		MimeLimit:        "!application/json;text/plain", // 只允许上传图片
 		CallbackURL:      callbackUrl,
 		CallbackBody:     utils.SerializeStr(f),
 		CallbackBodyType: "application/json",