diff --git a/sdk/src/main/java/cn/wildfirechat/sdk/GroupAdmin.java b/sdk/src/main/java/cn/wildfirechat/sdk/GroupAdmin.java
index ae3466f7..5f455f61 100644
--- a/sdk/src/main/java/cn/wildfirechat/sdk/GroupAdmin.java
+++ b/sdk/src/main/java/cn/wildfirechat/sdk/GroupAdmin.java
@@ -72,17 +72,11 @@ public class GroupAdmin {
         return AdminHttpUtils.httpJsonPost(path, input, OutputGroupMemberList.class);
     }
 
-    public static IMResult<Void> addGroupMembers(String operator, String groupId, List<String> groupMemberIds, List<Integer> to_lines, MessagePayload  notify_message) throws Exception {
+    public static IMResult<Void> addGroupMembers(String operator, String groupId, List<PojoGroupMember> groupMembers, List<Integer> to_lines, MessagePayload  notify_message) throws Exception {
         String path = APIPath.Group_Member_Add;
         InputAddGroupMember addGroupMember = new InputAddGroupMember();
         addGroupMember.setGroup_id(groupId);
-        List<PojoGroupMember> members = new ArrayList<>();
-        for (String mid : groupMemberIds) {
-            PojoGroupMember m = new PojoGroupMember();
-            m.setMember_id(mid);
-            members.add(m);
-        }
-        addGroupMember.setMembers(members);
+        addGroupMember.setMembers(groupMembers);
         addGroupMember.setOperator(operator);
         addGroupMember.setTo_lines(to_lines);
         addGroupMember.setNotify_message(notify_message);
diff --git a/sdk/src/main/java/cn/wildfirechat/sdk/Main.java b/sdk/src/main/java/cn/wildfirechat/sdk/Main.java
index ff0636a2..09d3f8f4 100644
--- a/sdk/src/main/java/cn/wildfirechat/sdk/Main.java
+++ b/sdk/src/main/java/cn/wildfirechat/sdk/Main.java
@@ -382,7 +382,11 @@ public class Main {
             System.exit(-1);
         }
 
-        voidIMResult = GroupAdmin.addGroupMembers("user1", groupInfo.getTarget_id(), Arrays.asList("use4", "user5"), null, null);
+        PojoGroupMember m = new PojoGroupMember();
+        m.setMember_id("user1");
+        m.setAlias("hello user1");
+        
+        voidIMResult = GroupAdmin.addGroupMembers("user1", groupInfo.getTarget_id(), Arrays.asList(m), null, null);
         if (voidIMResult != null && voidIMResult.getErrorCode() == ErrorCode.ERROR_CODE_SUCCESS) {
             System.out.println("add group member success");
         } else {