diff --git a/coolq/api.go b/coolq/api.go
index f9ecde26..3670e3d4 100644
--- a/coolq/api.go
+++ b/coolq/api.go
@@ -304,6 +304,14 @@ func (bot *CQBot) CQSetGroupName(groupId int64, name string) MSG {
 	return Failed(100)
 }
 
+func (bot *CQBot) CQSetGroupMemo(groupId int64, msg string) MSG {
+	if g := bot.Client.FindGroup(groupId); g != nil {
+		g.UpdateMemo(msg)
+		return OK(nil)
+	}
+	return Failed(100)
+}
+
 // https://cqhttp.cc/docs/4.15/#/API?id=set_group_kick-%E7%BE%A4%E7%BB%84%E8%B8%A2%E4%BA%BA
 func (bot *CQBot) CQSetGroupKick(groupId, userId int64, msg string) MSG {
 	if g := bot.Client.FindGroup(groupId); g != nil {
diff --git a/server/http.go b/server/http.go
index aa4d591d..64b75993 100644
--- a/server/http.go
+++ b/server/http.go
@@ -131,6 +131,9 @@ func (s *httpServer) Run(addr, authToken string, bot *coolq.CQBot) {
 	s.engine.Any("/set_group_name", s.SetGroupName)
 	s.engine.Any("/set_group_name_async", s.SetGroupName)
 
+	s.engine.Any("/_send_group_notice", s.SendGroupNotice)
+	s.engine.Any("/_send_group_notice_async", s.SendGroupNotice)
+
 	s.engine.Any("/set_group_leave", s.SetGroupLeave)
 	s.engine.Any("/set_group_leave_async", s.SetGroupLeave)
 
@@ -353,6 +356,11 @@ func (s *httpServer) SetGroupName(c *gin.Context) {
 	c.JSON(200, s.bot.CQSetGroupName(gid, getParam(c, "group_name")))
 }
 
+func (s *httpServer) SendGroupNotice(c *gin.Context) {
+	gid, _ := strconv.ParseInt(getParam(c, "group_id"), 10, 64)
+	c.JSON(200, s.bot.CQSetGroupMemo(gid, getParam(c, "content")))
+}
+
 func (s *httpServer) SetGroupLeave(c *gin.Context) {
 	gid, _ := strconv.ParseInt(getParam(c, "group_id"), 10, 64)
 	c.JSON(200, s.bot.CQSetGroupLeave(gid))
diff --git a/server/websocket.go b/server/websocket.go
index 9f80ee41..20986a49 100644
--- a/server/websocket.go
+++ b/server/websocket.go
@@ -479,6 +479,9 @@ var wsApi = map[string]func(*coolq.CQBot, gjson.Result) coolq.MSG{
 	"set_group_name": func(bot *coolq.CQBot, p gjson.Result) coolq.MSG {
 		return bot.CQSetGroupName(p.Get("group_id").Int(), p.Get("group_name").Str)
 	},
+	"_send_group_notice": func(bot *coolq.CQBot, p gjson.Result) coolq.MSG {
+		return bot.CQSetGroupMemo(p.Get("group_id").Int(), p.Get("content").Str)
+	},
 	"set_group_leave": func(bot *coolq.CQBot, p gjson.Result) coolq.MSG {
 		return bot.CQSetGroupLeave(p.Get("group_id").Int())
 	},