diff --git a/flutter/lib/common.dart b/flutter/lib/common.dart
index 38085ae8c..d5336e2e1 100644
--- a/flutter/lib/common.dart
+++ b/flutter/lib/common.dart
@@ -2140,3 +2140,20 @@ Widget buildRemoteBlock({required Widget child, WhetherUseRemoteBlock? use}) {
         ]),
       ));
 }
+
+Widget unreadMessageCountBuilder(RxInt? count) {
+  return Obx(() => Offstage(
+      offstage: !((count?.value ?? 0) > 0),
+      child: Container(
+        width: 16,
+        height: 16,
+        decoration: BoxDecoration(
+          color: Colors.red,
+          shape: BoxShape.circle,
+        ),
+        child: Center(
+          child: Text("${count?.value ?? 0}",
+              maxLines: 1, style: TextStyle(color: Colors.white, fontSize: 10)),
+        ),
+      ).marginOnly(left: 4)));
+}
diff --git a/flutter/lib/common/shared_state.dart b/flutter/lib/common/shared_state.dart
index e4711ddf8..d5ce29190 100644
--- a/flutter/lib/common/shared_state.dart
+++ b/flutter/lib/common/shared_state.dart
@@ -285,6 +285,29 @@ class PeerStringOption {
       Get.find<RxString>(tag: tag(id, opt));
 }
 
+class UnreadChatCountState {
+  static String tag(id) => 'unread_chat_count_$id';
+
+  static void init(String id) {
+    final key = tag(id);
+    if (!Get.isRegistered(tag: key)) {
+      final RxInt state = RxInt(0);
+      Get.put(state, tag: key);
+    } else {
+      Get.find<RxInt>(tag: key).value = 0;
+    }
+  }
+
+  static void delete(String id) {
+    final key = tag(id);
+    if (Get.isRegistered(tag: key)) {
+      Get.delete(tag: key);
+    }
+  }
+
+  static RxInt find(String id) => Get.find<RxInt>(tag: tag(id));
+}
+
 initSharedStates(String id) {
   PrivacyModeState.init(id);
   BlockInputState.init(id);
@@ -294,6 +317,7 @@ initSharedStates(String id) {
   RemoteCursorMovedState.init(id);
   FingerprintState.init(id);
   PeerBoolOption.init(id, 'zoom-cursor', () => false);
+  UnreadChatCountState.init(id);
 }
 
 removeSharedStates(String id) {
@@ -305,4 +329,5 @@ removeSharedStates(String id) {
   RemoteCursorMovedState.delete(id);
   FingerprintState.delete(id);
   PeerBoolOption.delete(id, 'zoom-cursor');
+  UnreadChatCountState.delete(id);
 }
diff --git a/flutter/lib/desktop/pages/remote_tab_page.dart b/flutter/lib/desktop/pages/remote_tab_page.dart
index 2333e343c..0b4f4094a 100644
--- a/flutter/lib/desktop/pages/remote_tab_page.dart
+++ b/flutter/lib/desktop/pages/remote_tab_page.dart
@@ -56,15 +56,14 @@ class _ConnectionTabPageState extends State<ConnectionTabPage> {
     if (peerId != null) {
       ConnectionTypeState.init(peerId);
       tabController.onSelected = (id) {
-        final remotePage = tabController.state.value.tabs
-            .firstWhereOrNull((tab) => tab.key == id)
-            ?.page;
+        final remotePage = tabController.widget(id);
         if (remotePage is RemotePage) {
           final ffi = remotePage.ffi;
           bind.setCurSessionId(sessionId: ffi.sessionId);
         }
         WindowController.fromWindowId(windowId())
             .setTitle(getWindowNameWithId(id));
+        UnreadChatCountState.find(id).value = 0;
       };
       tabController.add(TabInfo(
         key: peerId,
@@ -206,6 +205,7 @@ class _ConnectionTabPageState extends State<ConnectionTabPage> {
                       ).paddingOnly(right: 5),
                     ),
                     label,
+                    unreadMessageCountBuilder(UnreadChatCountState.find(key)),
                   ],
                 );
 
diff --git a/flutter/lib/desktop/pages/server_page.dart b/flutter/lib/desktop/pages/server_page.dart
index e996de2db..51e736f7b 100644
--- a/flutter/lib/desktop/pages/server_page.dart
+++ b/flutter/lib/desktop/pages/server_page.dart
@@ -158,24 +158,7 @@ class ConnectionManagerState extends State<ConnectionManager> {
                         message: key,
                         waitDuration: Duration(seconds: 1),
                         child: label),
-                    Obx(() => Offstage(
-                        offstage:
-                            !((client?.unreadChatMessageCount.value ?? 0) > 0),
-                        child: Container(
-                          width: 16,
-                          height: 16,
-                          decoration: BoxDecoration(
-                            color: Colors.red,
-                            shape: BoxShape.circle,
-                          ),
-                          child: Center(
-                            child: Text(
-                                "${client?.unreadChatMessageCount.value ?? 0}",
-                                maxLines: 1,
-                                style: TextStyle(
-                                    color: Colors.white, fontSize: 10)),
-                          ),
-                        ).marginOnly(left: 4)))
+                    unreadMessageCountBuilder(client?.unreadChatMessageCount),
                   ],
                 );
               },
diff --git a/flutter/lib/desktop/widgets/tabbar_widget.dart b/flutter/lib/desktop/widgets/tabbar_widget.dart
index 975398c94..85cf12704 100644
--- a/flutter/lib/desktop/widgets/tabbar_widget.dart
+++ b/flutter/lib/desktop/widgets/tabbar_widget.dart
@@ -187,6 +187,10 @@ class DesktopTabController {
     state.value.tabs.clear();
     state.refresh();
   }
+
+  Widget? widget(String key) {
+    return state.value.tabs.firstWhereOrNull((tab) => tab.key == key)?.page;
+  }
 }
 
 class TabThemeConf {
diff --git a/flutter/lib/models/chat_model.dart b/flutter/lib/models/chat_model.dart
index 81a240cba..d515d6706 100644
--- a/flutter/lib/models/chat_model.dart
+++ b/flutter/lib/models/chat_model.dart
@@ -1,10 +1,14 @@
 import 'dart:async';
 
 import 'package:dash_chat_2/dash_chat_2.dart';
+import 'package:desktop_multi_window/desktop_multi_window.dart';
 import 'package:draggable_float_widget/draggable_float_widget.dart';
 import 'package:flutter/material.dart';
 import 'package:flutter/services.dart';
+import 'package:flutter_hbb/common/shared_state.dart';
+import 'package:flutter_hbb/desktop/widgets/tabbar_widget.dart';
 import 'package:flutter_hbb/models/platform_model.dart';
+import 'package:flutter_hbb/models/state_model.dart';
 import 'package:get/get_rx/src/rx_types/rx_types.dart';
 import 'package:get/get.dart';
 import 'package:window_manager/window_manager.dart';
@@ -309,6 +313,29 @@ class ChatModel with ChangeNotifier {
         id: session.id,
       );
       toId = id;
+
+      if (isDesktop) {
+        if (Get.isRegistered<DesktopTabController>()) {
+          DesktopTabController tabController = Get.find<DesktopTabController>();
+          var index = tabController.state.value.tabs
+              .indexWhere((e) => e.key == session.id);
+          final notSelected =
+              index >= 0 && tabController.state.value.selected != index;
+          // minisized: top and switch tab
+          // not minisized: add count
+          if (await WindowController.fromWindowId(stateGlobal.windowId)
+              .isMinimized()) {
+            window_on_top(stateGlobal.windowId);
+            if (notSelected) {
+              tabController.jumpTo(index);
+            }
+          } else {
+            if (notSelected) {
+              UnreadChatCountState.find(session.id).value += 1;
+            }
+          }
+        }
+      }
     } else {
       final client =
           session.serverModel.clients.firstWhere((client) => client.id == id);
diff --git a/flutter/pubspec.lock b/flutter/pubspec.lock
index a01a5a02b..e14ff5046 100644
--- a/flutter/pubspec.lock
+++ b/flutter/pubspec.lock
@@ -319,7 +319,7 @@ packages:
     description:
       path: "."
       ref: HEAD
-      resolved-ref: "30518303e28702bf6b8110465293c05d21bc4cd2"
+      resolved-ref: aee670819f5fe7e8b0f05e0239dafb5c62f7a84b
       url: "https://github.com/rustdesk-org/rustdesk_desktop_multi_window"
     source: git
     version: "0.1.0"