diff --git a/Correlator/Util/MethodExtensions.cs b/Correlator/Util/MethodExtensions.cs
index fb32d28..20ca87b 100644
--- a/Correlator/Util/MethodExtensions.cs
+++ b/Correlator/Util/MethodExtensions.cs
@@ -14,6 +14,7 @@
 using Correlator.SensorHubTag;
 using HandyControl.Controls;
 using MathWorks.MATLAB.NET.Arrays;
+using NAudio.Wave;
 using Tag = Correlator.SensorHubTag.Tag;
 
 namespace Correlator.Util
@@ -539,7 +540,27 @@
 
             return bitmap;
         }
-        
+
+        /// <summary>
+        /// 采用流的方式加载图片资源，防止资源被一直占用
+        /// </summary>
+        /// <param name="audioPath"></param>
+        /// <returns></returns>
+        public static string GetAudioDuration(this string audioPath)
+        {
+            var duration = "--:--";
+            if (File.Exists(audioPath))
+            {
+                using (var reader = new AudioFileReader(audioPath))
+                {
+                    var timeSpan = reader.TotalTime;
+                    duration = timeSpan.ToString(@"hh\:mm\:ss");
+                }
+            }
+
+            return duration;
+        }
+
         /// <summary>
         /// List 转 ObservableCollection
         /// </summary>

diff --git a/Correlator/Util/MethodExtensions.cs b/Correlator/Util/MethodExtensions.cs
index fb32d28..20ca87b 100644
--- a/Correlator/Util/MethodExtensions.cs
+++ b/Correlator/Util/MethodExtensions.cs
@@ -14,6 +14,7 @@
 using Correlator.SensorHubTag;
 using HandyControl.Controls;
 using MathWorks.MATLAB.NET.Arrays;
+using NAudio.Wave;
 using Tag = Correlator.SensorHubTag.Tag;
 
 namespace Correlator.Util
@@ -539,7 +540,27 @@
 
             return bitmap;
         }
-        
+
+        /// <summary>
+        /// 采用流的方式加载图片资源，防止资源被一直占用
+        /// </summary>
+        /// <param name="audioPath"></param>
+        /// <returns></returns>
+        public static string GetAudioDuration(this string audioPath)
+        {
+            var duration = "--:--";
+            if (File.Exists(audioPath))
+            {
+                using (var reader = new AudioFileReader(audioPath))
+                {
+                    var timeSpan = reader.TotalTime;
+                    duration = timeSpan.ToString(@"hh\:mm\:ss");
+                }
+            }
+
+            return duration;
+        }
+
         /// <summary>
         /// List 转 ObservableCollection
         /// </summary>
diff --git a/Correlator/ViewModels/AudioFileDialogViewModel.cs b/Correlator/ViewModels/AudioFileDialogViewModel.cs
index 6de901e..46b7dbf 100644
--- a/Correlator/ViewModels/AudioFileDialogViewModel.cs
+++ b/Correlator/ViewModels/AudioFileDialogViewModel.cs
@@ -3,6 +3,7 @@
 using System.Collections.ObjectModel;
 using System.IO;
 using System.Linq;
+using System.Threading.Tasks;
 using System.Windows;
 using System.Windows.Media.Imaging;
 using System.Windows.Threading;
@@ -42,7 +43,7 @@
                 RaisePropertyChanged();
             }
         }
-        
+
         private ObservableCollection<AudioFile> _audioFiles;
 
         public ObservableCollection<AudioFile> AudioFiles
@@ -103,6 +104,18 @@
             }
         }
 
+        private bool _taskHasCompleted;
+
+        public bool TaskHasCompleted
+        {
+            get => _taskHasCompleted;
+            set
+            {
+                _taskHasCompleted = value;
+                RaisePropertyChanged();
+            }
+        }
+
         #endregion
 
         #region DelegateCommand
@@ -122,7 +135,7 @@
         /// 列表每页条目数
         /// </summary>
         private const int PerPageItemCount = 8;
-        
+
         private readonly DispatcherTimer _audioTimer = new DispatcherTimer
         {
             Interval = new TimeSpan(0, 0, 0, 1)
@@ -193,7 +206,7 @@
             }
         }
 
-        private void DeleteAudio()
+        private async void DeleteAudio()
         {
             if (_selectedFile == null)
             {
@@ -212,7 +225,7 @@
                 File.Delete(_selectedFile.FullPath);
 
                 //刷新数据
-                var totalFiles = GetTotalAudioFiles();
+                var totalFiles = await GetTotalAudioFilesAsync();
                 MaxPage = (totalFiles.Count + PerPageItemCount - 1) / PerPageItemCount;
                 AudioFiles = totalFiles.ToObservableCollection();
             }
@@ -222,9 +235,10 @@
             }
         }
 
-        private void PageUpdated(FunctionEventArgs<int> args)
+        private async void PageUpdated(FunctionEventArgs<int> args)
         {
-            var audioFiles = GetTotalAudioFiles()
+            var files = await GetTotalAudioFilesAsync();
+            var audioFiles = files
                 .Skip((args.Info - 1) * PerPageItemCount)
                 .Take(PerPageItemCount)
                 .ToList();
@@ -247,18 +261,35 @@
         {
         }
 
-        public void OnDialogOpened(IDialogParameters parameters)
+        public async void OnDialogOpened(IDialogParameters parameters)
         {
             EmptyBitmapImage = new BitmapImage(new Uri(@"..\..\Image\empty_image.png", UriKind.Relative));
-            var totalFiles = GetTotalAudioFiles();
+            var totalFiles = await GetTotalAudioFilesAsync();
             MaxPage = (totalFiles.Count + PerPageItemCount - 1) / PerPageItemCount;
             AudioFiles = totalFiles.Take(PerPageItemCount).ToList().ToObservableCollection();
         }
 
-        private static List<AudioFile> GetTotalAudioFiles()
+        /// <summary>
+        /// 异步遍历文件夹，防止卡主线程
+        /// </summary>
+        /// <returns></returns>
+        private async Task<List<AudioFile>> GetTotalAudioFilesAsync()
         {
             var audioFiles = new List<AudioFile>();
-            var files = new DirectoryInfo(DirectoryManager.GetAudioDir())
+
+            await Task.Run(() => TraverseFolder(DirectoryManager.GetAudioDir(), audioFiles));
+            TaskHasCompleted = true;
+            return audioFiles.OrderBy(file => file.CreationTime).Reverse().ToList();
+        }
+
+        /// <summary>
+        /// 遍历文件夹并生成相应的数据类型集合
+        /// </summary>
+        /// <param name="folderPath"></param>
+        /// <param name="audioFiles"></param>
+        private static void TraverseFolder(string folderPath, List<AudioFile> audioFiles)
+        {
+            var files = new DirectoryInfo(folderPath)
                 .GetFiles("*", SearchOption.AllDirectories)
                 .OrderBy(file => file.CreationTime)
                 .Reverse();
@@ -277,14 +308,13 @@
                     {
                         FileName = fileName,
                         FileSource = fileSource,
-                        FullPath = DirectoryManager.GetAudioDir() + "\\" + fileName,
+                        FullPath = file.FullName,
                         FileSize = file.Length.FormatFileSize(),
+                        Duration = file.FullName.GetAudioDuration(),
                         CreationTime = file.LastWriteTime.ToString("yyyy-MM-dd HH:mm:ss")
                     });
                 }
             }
-
-            return audioFiles;
         }
     }
 }
\ No newline at end of file