diff --git a/modules/user/api_modifysign.go b/modules/user/api_modifysign.go
index cf3faea31..ea4a47644 100644
--- a/modules/user/api_modifysign.go
+++ b/modules/user/api_modifysign.go
@@ -9,7 +9,7 @@ import (
 // 修改签名
 
 func (this *apiComp) ModifysignCheck(session comm.IUserSession, req *pb.UserModifysignReq) (errdata *pb.ErrorData) {
-	if req.Sign == "" || len(req.Sign) > 200 {
+	if req.Sign == "" {
 		errdata = &pb.ErrorData{
 			Code:  pb.ErrorCode_ReqParameterError,
 			Title: pb.ErrorCode_ReqParameterError.ToString(),