diff --git a/api_calendar_calendar_event_meeting_chat_delete.go b/api_calendar_calendar_event_meeting_chat_delete.go
new file mode 100644
index 00000000..0364c850
--- /dev/null
+++ b/api_calendar_calendar_event_meeting_chat_delete.go
@@ -0,0 +1,78 @@
+// Code generated by lark_sdk_gen. DO NOT EDIT.
+/**
+ * Copyright 2022 chyroc
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package lark
+
+import (
+	"context"
+)
+
+// DeleteCalendarEventMeetingChat 该接口用于以当前身份（应用/用户）解绑已创建的会议群。身份由 Header Authorization 的 Token 类型决定。
+//
+// - 日历需要是当前身份的主日历, 且有writer权限
+// - 操作人需要是群主
+//
+// doc: https://open.feishu.cn/document/uAjLw4CM/ukTMukTMukTM/reference/calendar-v4/calendar-event-meeting_chat/delete
+func (r *CalendarService) DeleteCalendarEventMeetingChat(ctx context.Context, request *DeleteCalendarEventMeetingChatReq, options ...MethodOptionFunc) (*DeleteCalendarEventMeetingChatResp, *Response, error) {
+	if r.cli.mock.mockCalendarDeleteCalendarEventMeetingChat != nil {
+		r.cli.log(ctx, LogLevelDebug, "[lark] Calendar#DeleteCalendarEventMeetingChat mock enable")
+		return r.cli.mock.mockCalendarDeleteCalendarEventMeetingChat(ctx, request, options...)
+	}
+
+	req := &RawRequestReq{
+		Scope:                 "Calendar",
+		API:                   "DeleteCalendarEventMeetingChat",
+		Method:                "DELETE",
+		URL:                   r.cli.openBaseURL + "/open-apis/calendar/v4/calendars/:calendar_id/events/:event_id/meeting_chat",
+		Body:                  request,
+		MethodOption:          newMethodOption(options),
+		NeedTenantAccessToken: true,
+		NeedUserAccessToken:   true,
+	}
+	resp := new(deleteCalendarEventMeetingChatResp)
+
+	response, err := r.cli.RawRequest(ctx, req, resp)
+	return resp.Data, response, err
+}
+
+// MockCalendarDeleteCalendarEventMeetingChat mock CalendarDeleteCalendarEventMeetingChat method
+func (r *Mock) MockCalendarDeleteCalendarEventMeetingChat(f func(ctx context.Context, request *DeleteCalendarEventMeetingChatReq, options ...MethodOptionFunc) (*DeleteCalendarEventMeetingChatResp, *Response, error)) {
+	r.mockCalendarDeleteCalendarEventMeetingChat = f
+}
+
+// UnMockCalendarDeleteCalendarEventMeetingChat un-mock CalendarDeleteCalendarEventMeetingChat method
+func (r *Mock) UnMockCalendarDeleteCalendarEventMeetingChat() {
+	r.mockCalendarDeleteCalendarEventMeetingChat = nil
+}
+
+// DeleteCalendarEventMeetingChatReq ...
+type DeleteCalendarEventMeetingChatReq struct {
+	CalendarID    string `path:"calendar_id" json:"-"`      // 日历ID, 示例值: "feishu.cn_xxx@group.calendar.feishu.cn"
+	EventID       string `path:"event_id" json:"-"`         // 日程ID, 示例值: "75d28f9b-e35c-4230-8a83-123_0"
+	MeetingChatID string `query:"meeting_chat_id" json:"-"` // 会议群ID, 示例值: oc_xxx
+}
+
+// DeleteCalendarEventMeetingChatResp ...
+type DeleteCalendarEventMeetingChatResp struct {
+}
+
+// deleteCalendarEventMeetingChatResp ...
+type deleteCalendarEventMeetingChatResp struct {
+	Code int64                               `json:"code,omitempty"` // 错误码, 非 0 表示失败
+	Msg  string                              `json:"msg,omitempty"`  // 错误描述
+	Data *DeleteCalendarEventMeetingChatResp `json:"data,omitempty"`
+}