diff --git a/lib/flutter_openim_sdk.dart b/lib/flutter_openim_sdk.dart
index bb92a45..0eb5e0a 100644
--- a/lib/flutter_openim_sdk.dart
+++ b/lib/flutter_openim_sdk.dart
@@ -3,6 +3,7 @@ library flutter_openim_sdk;
 export 'src/enum/conversation_type.dart';
 export 'src/enum/group_at_type.dart';
 export 'src/enum/group_role_level.dart';
+export 'src/enum/group_type.dart';
 export 'src/enum/group_verification.dart';
 export 'src/enum/im_platform.dart';
 export 'src/enum/listener_type.dart';
diff --git a/lib/src/enum/group_type.dart b/lib/src/enum/group_type.dart
new file mode 100644
index 0000000..434ec59
--- /dev/null
+++ b/lib/src/enum/group_type.dart
@@ -0,0 +1,8 @@
+/// 组类型
+class GroupType {
+  /// 普通群
+  static const int general = 0;
+
+  /// 工作群
+  static const int work = 2;
+}
diff --git a/lib/src/manager/im_group_manager.dart b/lib/src/manager/im_group_manager.dart
index 33bc1ff..886848c 100644
--- a/lib/src/manager/im_group_manager.dart
+++ b/lib/src/manager/im_group_manager.dart
@@ -157,9 +157,9 @@ class GroupManager {
   /// [notification] 公告
   /// [introduction] 群介绍
   /// [faceUrl] 群头像
-  /// [groupType] 组类型
+  /// [groupType] 组类型 [GroupType]
   /// [ex] 额外信息
-  /// [list] 初创群成员以及其角色列表，角色参考[GroupRoleLevel]类
+  /// [list] 初创群成员以及其角色列表[GroupMemberRole]
   Future<GroupInfo> createGroup({
     String? groupName,
     String? notification,
@@ -481,7 +481,7 @@ class GroupManager {
           .then((value) =>
               Utils.toList(value, (map) => GroupMembersInfo.fromJson(map)));
 
-  /// 设置群成员权限
+  /// 进群验证设置
   /// [groupID] 群ID
   /// [needVerification] 进群设置，参考[GroupVerification]类
   Future<dynamic> setGroupVerification({