diff --git a/SharpCompressStudy.Core/CommonUtility.cs b/SharpCompressStudy.Core/CommonUtility.cs
index 6aa1498..3abe06e 100644
--- a/SharpCompressStudy.Core/CommonUtility.cs
+++ b/SharpCompressStudy.Core/CommonUtility.cs
@@ -19,6 +19,7 @@ using SharpCompress.Archives.Rar;
 using SharpCompress.Archives.GZip;
 using SharpCompress.Archives.Tar;
 using SharpCompress.Archives.SevenZip;
+using SharpCompress.Readers;
 
 namespace SharpCompressStudy.Core
 {
@@ -62,17 +63,33 @@ namespace SharpCompressStudy.Core
 
         private static void DecompressRarFile(string fileName, bool isDelete)
         {
+            ArgumentNullException.ThrowIfNull(fileName);
+
+            var extName = Path.GetExtension(fileName);
+
+            var descDir = Path.Combine(Path.GetDirectoryName(fileName)!, new FileInfo(fileName).Name.Replace(extName,"") + "\\");
+
+            if (!Directory.Exists(descDir))
+            {
+                Directory.CreateDirectory(descDir);
+            }
+
             try
             {
-                var extName = Path.GetExtension(fileName).Trim().ToLower();
-                switch (extName)
+                using (Stream stream = File.OpenRead(fileName))
                 {
-                    case ".rar":
-                        break;
-                    default:
-                        break;
+                    var reader = ReaderFactory.Open(stream);
+                    while (reader.MoveToNextEntry())
+                    {
+                        if (!reader.Entry.IsDirectory)
+                        {
+                            Console.WriteLine(reader.Entry.Key);
+                            reader.WriteEntryToDirectory(descDir, new ExtractionOptions() { ExtractFullPath = true, Overwrite = true });
+                        }
+                    }
                 }
 
+
                 if (isDelete)
                 {
                     File.Delete(fileName);
diff --git a/SharpCompressStudy.Core/Resource/学习2.rar b/SharpCompressStudy.Core/Resource/学习2.rar
new file mode 100644
index 0000000..fda1e43
Binary files /dev/null and b/SharpCompressStudy.Core/Resource/学习2.rar differ
diff --git a/SharpCompressStudy.Core/SharpCompressStudy.Core.csproj b/SharpCompressStudy.Core/SharpCompressStudy.Core.csproj
index d239a34..c649f9d 100644
--- a/SharpCompressStudy.Core/SharpCompressStudy.Core.csproj
+++ b/SharpCompressStudy.Core/SharpCompressStudy.Core.csproj
@@ -17,6 +17,9 @@
     <None Update="Resource\学习.rar">
       <CopyToOutputDirectory>PreserveNewest</CopyToOutputDirectory>
     </None>
+    <None Update="Resource\学习2.rar">
+      <CopyToOutputDirectory>PreserveNewest</CopyToOutputDirectory>
+    </None>
   </ItemGroup>
 
 </Project>
diff --git a/SharpCompressStudy.Test/CommonUtilityTest.cs b/SharpCompressStudy.Test/CommonUtilityTest.cs
index c68ec2b..1e939e5 100644
--- a/SharpCompressStudy.Test/CommonUtilityTest.cs
+++ b/SharpCompressStudy.Test/CommonUtilityTest.cs
@@ -3,10 +3,17 @@ namespace SharpCompressStudy
     public class CommonUtilityTest
     {
         [Fact]
-        public void Test1()
+        public void Zip_Test()
         {
             var file = AppDomain.CurrentDomain.BaseDirectory + "/Resource/" + "Àû¸ÛÄ£ÐÍABÎļþ.zip";
             CommonUtility.Decompress(file,false);
         }
+
+        [Fact]
+        public void Rar_Test()
+        {
+            var file = AppDomain.CurrentDomain.BaseDirectory + "/Resource/" + "ѧϰ.rar";
+            CommonUtility.Decompress(file, false);
+        }
     }
 }
\ No newline at end of file
diff --git a/SharpCompressStudy.Test/WinRarFileTest.cs b/SharpCompressStudy.Test/WinRarFileTest.cs
index dfcac3b..e1d2e23 100644
--- a/SharpCompressStudy.Test/WinRarFileTest.cs
+++ b/SharpCompressStudy.Test/WinRarFileTest.cs
@@ -20,15 +20,41 @@ namespace SharpCompressStudy.Core
         [Fact]
         public void ExtractFromRar_Test()
         {
-            var rarFilePath = AppDomain.CurrentDomain.BaseDirectory + "Resource\\ѧϰ.rar";
 
-            var extractPath = Path.Combine(AppDomain.CurrentDomain.BaseDirectory, "Resource\\", Guid.NewGuid().ToString() + "\\");
-            if (!Directory.Exists(extractPath))
+            var rarFilePath = AppDomain.CurrentDomain.BaseDirectory + "Resource\\ѧϰ2.rar";
+
+            if (!File.Exists(rarFilePath))
             {
-                Directory.CreateDirectory(extractPath);
+                throw new FileNotFoundException("RarÎļþ²»´æÔÚ");
             }
+
+            //À©Õ¹Ãû
+            var extName = Path.GetExtension(rarFilePath);
+
+            //ÎļþÃû
+            var rarFileName = Path.GetFileName(rarFilePath).Replace(extName, "");
+
+            //²»´øÀ©Õ¹ÃûµÄÎļþÃû
+            var rarFileNameWithoutExt = Path.GetFileNameWithoutExtension(rarFilePath);
+
+            //½âѹ¸ùĿ¼
+            var extractPath = Path.Combine(AppDomain.CurrentDomain.BaseDirectory, "Resource\\models\\temp\\", Guid.NewGuid().ToString() + "\\");
+
             using (var archive = RarArchive.Open(rarFilePath))
             {
+                //ѹËõÎļþÊÇ·ñ°üº¬Í¬Ãû¸ùĿ¼(abc.rar½â¾öºóÊÇ·ñÓÐÒ»¸öÃûΪabcµÄ¸ùĿ¼)
+                if (archive.Entries.Where(f => f.IsDirectory && f.Key == rarFileNameWithoutExt).Count() != 1)
+                {
+                    extractPath = Path.Combine(extractPath, rarFileNameWithoutExt);
+                }
+
+                //´´½¨½âѹĿ¼
+                if (!Directory.Exists(extractPath))
+                {
+                    Directory.CreateDirectory(extractPath);
+                }
+
+                //½âѹËùÓÐÎļþµ½Ö¸¶¨Ä¿Â¼
                 foreach (var entry in archive.Entries)
                 {
                     if (!entry.IsDirectory)