diff --git a/sa_tools_core/libs/notify/lark.py b/sa_tools_core/libs/notify/lark.py
index 4384c39..4c56f44 100644
--- a/sa_tools_core/libs/notify/lark.py
+++ b/sa_tools_core/libs/notify/lark.py
@@ -4,6 +4,7 @@
 
 import json
 import logging
+from typing import Union
 
 import pylark
 
@@ -30,14 +31,21 @@ def load_from_configs(configs: dict):
             app.tenants[name] = lark
         return app
 
-    def get_lark(self, company="douban"):
+    def get_lark(self, company="douban") -> Union[pylark.Lark, None]:
         lark = self.tenants.get(company)
         if lark:
             return lark
         logger.error(f"no tenant named {company}, please check your code and configs")
 
 
-def send_message(addrs, content, **kwargs):
+def send_message(addrs: [str], content: str, **kwargs):
+    """
+    发送消息
+    :param addrs: 接收人的邮箱地址, 或部门id
+    :param content: 消息内容, 可以是字符串, 也可以是json格式的字符串
+    :param kwargs: 其他参数
+    :return: None
+    """
     secret = get_config("lark-multi-tenant")
     # config template:
     # {
@@ -51,12 +59,31 @@ def send_message(addrs, content, **kwargs):
     lark_bundle = LarkApp.load_from_configs(configs=json.loads(secret))
     company = kwargs.get("company", DEFAULT_LARK_TENANT) or DEFAULT_LARK_TENANT
     lark = lark_bundle.get_lark(company=company)
-    for addr in addrs:
-        res, response = lark.message.send_raw_message(
-            pylark.SendRawMessageReq(
-                receive_id_type="email",
-                receive_id=addr,
-                content=json.dumps({"text": content}),
-                msg_type="text",
+    address_type = kwargs.get("address_type", "email")
+    msg_type = kwargs.get("msg_type", "text")
+    if address_type == "email":
+        if msg_type == "text":
+            content = json.dumps({"text": content})
+        for addr in addrs:
+            lark.message.send_raw_message(
+                pylark.SendRawMessageReq(
+                    receive_id_type="email",
+                    receive_id=addr,
+                    content=content,
+                    msg_type=msg_type,
+                )
             )
-        )
+
+        return
+    if address_type == "department_id":
+        if msg_type == "text":
+            content = {"text": content}
+        else:
+            content = json.loads(content)
+        lark.message.batch_send_old_raw_message(pylark.BatchSendOldRawMessageReq(
+            department_ids=addrs,
+            content=content,
+            msg_type=msg_type,
+        ))
+        return
+
diff --git a/setup.py b/setup.py
index 8f76e5e..79f1565 100644
--- a/setup.py
+++ b/setup.py
@@ -3,7 +3,7 @@
 from io import open
 from setuptools import setup, find_packages
 
-version = '0.5.1'
+version = '0.6.0'
 
 requirements = [
     'setuptools',