diff --git a/modules/mainline/api_challenge.go b/modules/mainline/api_challenge.go
index 2b29c6f52..fa645dedc 100644
--- a/modules/mainline/api_challenge.go
+++ b/modules/mainline/api_challenge.go
@@ -9,7 +9,7 @@ import (
 
 //参数校验
 func (this *apiComp) ChallengeCheck(session comm.IUserSession, req *pb.MainlineChallengeReq) (code pb.ErrorCode) {
-	if req.MainlineId == 0 {
+	if req.MainlineId == 0 || req.ChapterObj == "" || req.Leadpos >= 5 || len(req.Teamids) > 5 || req.Leadpos < 0 {
 		code = pb.ErrorCode_ReqParameterError
 		return
 	}
@@ -58,6 +58,9 @@ func (this *apiComp) Challenge(session comm.IUserSession, req *pb.MainlineChalle
 		Teamids: req.Teamids,
 		Mformat: node.FormatList,
 	})
+	if code != pb.ErrorCode_Success {
+		return
+	}
 	session.SendMsg(string(this.module.GetType()), MainlineChallengeResp, &pb.MainlineChallengeResp{Info: &pb.BattleInfo{
 		Id:         record.Id,
 		Btype:      record.Btype,