diff --git a/ui/lib/providers/settings.dart b/ui/lib/providers/settings.dart
index 7cc21cc..f047f4f 100644
--- a/ui/lib/providers/settings.dart
+++ b/ui/lib/providers/settings.dart
@@ -6,8 +6,9 @@ import 'package:quiver/strings.dart';
 import 'package:ui/providers/APIs.dart';
 import 'package:ui/providers/server_response.dart';
 
-var settingProvider = AsyncNotifierProvider.autoDispose
-    <EditSettingData, GeneralSetting>(EditSettingData.new);
+var settingProvider =
+    AsyncNotifierProvider.autoDispose<EditSettingData, GeneralSetting>(
+        EditSettingData.new);
 
 var indexersProvider =
     AsyncNotifierProvider.autoDispose<IndexerSetting, List<Indexer>>(
@@ -152,15 +153,12 @@ class DownloadClientSetting
     return indexers;
   }
 
-  Future<void> addDownloadClients(String name, String url) async {
-    if (name.isEmpty || url.isEmpty) {
+  Future<void> addDownloadClients(DownloadClient client) async {
+    if (isBlank(client.name) || isBlank(client.url)) {
       return;
     }
     final dio = await APIs.getDio();
-    var resp = await dio.post(APIs.addDownloadClientUrl, data: {
-      "name": name,
-      "url": url,
-    });
+    var resp = await dio.post(APIs.addDownloadClientUrl, data: client.toJson());
     var sp = ServerResponse.fromJson(resp.data);
     if (sp.code != 0) {
       throw sp.message;
@@ -185,8 +183,8 @@ class DownloadClient {
   String? name;
   String? implementation;
   String? url;
-  bool? removeCompletedDownloads;
-  bool? removeFailedDownloads;
+  String? user;
+  String? password;
 
   DownloadClient(
       {this.id,
@@ -194,8 +192,8 @@ class DownloadClient {
       this.name,
       this.implementation,
       this.url,
-      this.removeCompletedDownloads,
-      this.removeFailedDownloads});
+      this.user,
+      this.password});
 
   DownloadClient.fromJson(Map<String, dynamic> json) {
     id = json['id'];
@@ -203,8 +201,8 @@ class DownloadClient {
     name = json['name'];
     implementation = json['implementation'];
     url = json['url'];
-    removeCompletedDownloads = json['remove_completed_downloads'];
-    removeFailedDownloads = json['remove_failed_downloads'];
+    user = json['user'];
+    password = json['password'];
   }
 
   Map<String, dynamic> toJson() {
@@ -214,8 +212,8 @@ class DownloadClient {
     data['name'] = name;
     data['implementation'] = implementation;
     data['url'] = url;
-    data['remove_completed_downloads'] = removeCompletedDownloads;
-    data['remove_failed_downloads'] = removeFailedDownloads;
+    data['user'] = user;
+    data['password'] = password;
     return data;
   }
 }
diff --git a/ui/lib/system_settings.dart b/ui/lib/system_settings.dart
index 089155a..1a1edb6 100644
--- a/ui/lib/system_settings.dart
+++ b/ui/lib/system_settings.dart
@@ -1,5 +1,6 @@
 import 'package:flutter/material.dart';
 import 'package:flutter_riverpod/flutter_riverpod.dart';
+import 'package:quiver/strings.dart';
 import 'package:ui/providers/login.dart';
 import 'package:ui/providers/settings.dart';
 import 'package:ui/utils.dart';
@@ -303,7 +304,10 @@ class _SystemSettingsPageState extends ConsumerState<SystemSettingsPage> {
   Future<void> showDownloadClientDetails(DownloadClient client) {
     var nameController = TextEditingController(text: client.name);
     var urlController = TextEditingController(text: client.url);
+    var userController = TextEditingController(text: client.user);
+    var passController = TextEditingController(text: client.password);
 
+    var _enableAuth = isNotBlank(client.user);
     String selectImpl = "transmission";
     var body = <Widget>[
       DropdownMenu(
@@ -326,7 +330,34 @@ class _SystemSettingsPageState extends ConsumerState<SystemSettingsPage> {
         decoration: Commons.requiredTextFieldStyle(text: "地址"),
         controller: urlController,
       ),
-      
+      StatefulBuilder(builder: (BuildContext context, StateSetter setState) {
+        return Column(
+          children: [
+            SwitchListTile(
+                title: const Text("开启认证"),
+                value: _enableAuth,
+                onChanged: (v) {
+                  setState(() {
+                    _enableAuth = v;
+                  });
+                }),
+            _enableAuth
+                ? Column(
+                    children: [
+                      TextField(
+                        decoration: Commons.requiredTextFieldStyle(text: "用户"),
+                        controller: userController,
+                      ),
+                      TextField(
+                        decoration: Commons.requiredTextFieldStyle(text: "密码"),
+                        controller: passController,
+                      ),
+                    ],
+                  )
+                : Container()
+          ],
+        );
+      })
     ];
     onDelete() async {
       return ref
@@ -335,9 +366,13 @@ class _SystemSettingsPageState extends ConsumerState<SystemSettingsPage> {
     }
 
     onSubmit() async {
-      return ref
-          .read(dwonloadClientsProvider.notifier)
-          .addDownloadClients(nameController.text, urlController.text);
+      return ref.read(dwonloadClientsProvider.notifier).addDownloadClients(
+          DownloadClient(
+              name: nameController.text,
+              implementation: "transmission",
+              url: urlController.text,
+              user: _enableAuth ? userController.text : null,
+              password: _enableAuth ? passController.text : null));
     }
 
     return showSettingDialog(