diff --git a/coolq/api.go b/coolq/api.go
index fe64af5..d49313e 100644
--- a/coolq/api.go
+++ b/coolq/api.go
@@ -34,8 +34,11 @@ func (bot *CQBot) CQGetFriendList() MSG {
 }
 
 // https://cqhttp.cc/docs/4.15/#/API?id=get_group_list-%E8%8E%B7%E5%8F%96%E7%BE%A4%E5%88%97%E8%A1%A8
-func (bot *CQBot) CQGetGroupList() MSG {
+func (bot *CQBot) CQGetGroupList(noCache bool) MSG {
 	var gs []MSG
+	if noCache {
+		_ = bot.Client.ReloadGroupList()
+	}
 	for _, g := range bot.Client.GroupList {
 		gs = append(gs, MSG{
 			"group_id":         g.Code,
diff --git a/server/http.go b/server/http.go
index 6bac8bf..6a27bb0 100644
--- a/server/http.go
+++ b/server/http.go
@@ -209,7 +209,8 @@ func (s *httpServer) GetFriendList(c *gin.Context) {
 }
 
 func (s *httpServer) GetGroupList(c *gin.Context) {
-	c.JSON(200, s.bot.CQGetGroupList())
+	nc := getParamOrDefault(c, "no_cache", "false")
+	c.JSON(200, s.bot.CQGetGroupList(nc == "true"))
 }
 
 func (s *httpServer) GetGroupInfo(c *gin.Context) {
diff --git a/server/websocket.go b/server/websocket.go
index f127026..45a4f3c 100644
--- a/server/websocket.go
+++ b/server/websocket.go
@@ -314,7 +314,7 @@ var wsApi = map[string]func(*coolq.CQBot, gjson.Result) coolq.MSG{
 		return bot.CQGetFriendList()
 	},
 	"get_group_list": func(bot *coolq.CQBot, p gjson.Result) coolq.MSG {
-		return bot.CQGetGroupList()
+		return bot.CQGetGroupList(p.Get("no_cache").Bool())
 	},
 	"get_group_info": func(bot *coolq.CQBot, p gjson.Result) coolq.MSG {
 		return bot.CQGetGroupInfo(p.Get("group_id").Int())