diff --git a/MECF.Framework.Common/Aitex/Core/Account/CredentialManager.cs b/MECF.Framework.Common/Aitex/Core/Account/CredentialManager.cs
index f9b3803..ac24840 100644
--- a/MECF.Framework.Common/Aitex/Core/Account/CredentialManager.cs
+++ b/MECF.Framework.Common/Aitex/Core/Account/CredentialManager.cs
@@ -14,7 +14,25 @@ public class CredentialManager : Singleton<CredentialManager>
 {
     #region Variables
 
-    private const int KEEP_ALIVE_TIMEOUT_SEC = 60;
+    /// <summary>
+    /// 已登录的凭据激活超时时间。
+    /// </summary>
+    /// <remarks>
+    /// 如果凭据超过此时间没有被激活，则自动移除此凭据。
+    /// </remarks>
+    public const int LOGIN_CRED_KEEP_ALIVE_TIMEOUT_SEC = 60;
+
+    /// <summary>
+    /// 正在请求登录的凭据的生命时长。
+    /// </summary>
+    public const int REQ_LOGIN_CRED_LIFT_TIME_SEC = REQ_LOGIN_DIALOG_LIFT_TIME__SEC + 5;
+
+    /// <summary>
+    /// UI中的请求登录/授权登录对话框存活时间
+    /// </summary>
+    public const int REQ_LOGIN_DIALOG_LIFT_TIME__SEC = 30;
+
+
 
     private readonly object _syncRoot = new();
     
@@ -88,11 +106,13 @@ public class CredentialManager : Singleton<CredentialManager>
     {
         lock (_syncRoot)
         {
+            #region 已登录凭据存活检测
+
             var loginRemovableList = new List<Guid>();
             foreach (var kvp in _dictCredentialsLoggedIn)
             {
                 var cred = kvp.Value;
-                if ((DateTime.Now - cred.LastAliveTime).TotalSeconds > KEEP_ALIVE_TIMEOUT_SEC)
+                if ((DateTime.Now - cred.LastAliveTime).TotalSeconds > LOGIN_CRED_KEEP_ALIVE_TIMEOUT_SEC)
                 {
                     loginRemovableList.Add(cred.Token);
                     EV.PostLoginBySameUser(cred.Token, new Credential());
@@ -108,11 +128,15 @@ public class CredentialManager : Singleton<CredentialManager>
                 }
             }
 
+            #endregion
+
+            #region 请求登录凭据存活检测
+
             var requestRemovableList = new List<string>();
             foreach (var kvp in _dictCredentialsRequesting)
             {
                 var cred = kvp.Value;
-                if ((DateTime.Now - cred.LastAliveTime).TotalSeconds > KEEP_ALIVE_TIMEOUT_SEC)
+                if ((DateTime.Now - cred.LastAliveTime).TotalSeconds > REQ_LOGIN_CRED_LIFT_TIME_SEC)
                     requestRemovableList.Add(kvp.Key);
             }
 
@@ -126,6 +150,8 @@ public class CredentialManager : Singleton<CredentialManager>
             }
 
             return true;
+
+            #endregion
         }
     }
 
diff --git a/MECF.Framework.UI.Client/ClientBase/Dialog/LoginRequestConfirmationDialog.xaml.cs b/MECF.Framework.UI.Client/ClientBase/Dialog/LoginRequestConfirmationDialog.xaml.cs
index 6fc4446..80268ec 100644
--- a/MECF.Framework.UI.Client/ClientBase/Dialog/LoginRequestConfirmationDialog.xaml.cs
+++ b/MECF.Framework.UI.Client/ClientBase/Dialog/LoginRequestConfirmationDialog.xaml.cs
@@ -2,6 +2,7 @@
 using System.Threading;
 using System.Threading.Tasks;
 using System.Windows;
+using Aitex.Core.Account;
 
 namespace MECF.Framework.UI.Client.ClientBase.Dialog
 {
@@ -36,7 +37,7 @@ namespace MECF.Framework.UI.Client.ClientBase.Dialog
         {
             base.OnSourceInitialized(e);
 
-            var closeTime = DateTime.Now.Add(TimeSpan.FromSeconds(30));
+            var closeTime = DateTime.Now.Add(TimeSpan.FromSeconds(CredentialManager.REQ_LOGIN_DIALOG_LIFT_TIME__SEC));
             Task.Run(() =>
             {
                 while (true)
diff --git a/MECF.Framework.UI.Client/ClientBase/Dialog/LoginRequestWaitDialog.xaml.cs b/MECF.Framework.UI.Client/ClientBase/Dialog/LoginRequestWaitDialog.xaml.cs
index 6c236ec..2d01fcc 100644
--- a/MECF.Framework.UI.Client/ClientBase/Dialog/LoginRequestWaitDialog.xaml.cs
+++ b/MECF.Framework.UI.Client/ClientBase/Dialog/LoginRequestWaitDialog.xaml.cs
@@ -1,4 +1,5 @@
-using System;
+using Aitex.Core.Account;
+using System;
 using System.ComponentModel;
 using System.Threading;
 using System.Threading.Tasks;
@@ -37,7 +38,7 @@ namespace MECF.Framework.UI.Client.ClientBase.Dialog
         {
             base.OnSourceInitialized(e);
 
-            var closeTime = DateTime.Now.Add(TimeSpan.FromSeconds(30));
+            var closeTime = DateTime.Now.Add(TimeSpan.FromSeconds(CredentialManager.REQ_LOGIN_DIALOG_LIFT_TIME__SEC));
             Task.Run(() =>
             {
                 while (true)