diff --git a/server/imserver_new/guild/guildmgr.go b/server/imserver_new/guild/guildmgr.go
index 6ae1949e..d43a1bd5 100644
--- a/server/imserver_new/guild/guildmgr.go
+++ b/server/imserver_new/guild/guildmgr.go
@@ -7,6 +7,7 @@ import (
 	"main/constant"
 	"fmt"
 	"mt"
+	"strings"
 	. "main/global"
 )
 
@@ -89,6 +90,10 @@ func (this *guildMgr) isNameTooLong(name string) bool {
 	return len(name) > 15
 }
 
+func (this *guildMgr) isValidName(name string) bool {
+	return !strings.Contains(name, "!")
+}
+
 func (this *guildMgr) GetGuildByGuildId(guildId string) common.Guild {
 	if p := this.internalGetGuildByGuildId(guildId); p != nil {
 		return p
@@ -287,6 +292,11 @@ func (this *guildMgr) AsyncCreateGuild(accountId string, sessionId string, avata
 				cb(2, "Name is to long", "")
 				return
 			}
+			if !this.isValidName(name) {
+				task.SetFail()
+				cb(2, "Name is invalid", "")
+				return
+			}
 			if this.GetGuildByAccountId(accountId) != nil {
 				task.SetFail()
 				cb(3, "You already have a cube", "")