diff --git a/framework/src/Volo.Abp.BlobStoring.Aliyun/Volo/Abp/BlobStoring/Aliyun/AliyunBlobProvider.cs b/framework/src/Volo.Abp.BlobStoring.Aliyun/Volo/Abp/BlobStoring/Aliyun/AliyunBlobProvider.cs
index a562d93ee3..237465ef91 100644
--- a/framework/src/Volo.Abp.BlobStoring.Aliyun/Volo/Abp/BlobStoring/Aliyun/AliyunBlobProvider.cs
+++ b/framework/src/Volo.Abp.BlobStoring.Aliyun/Volo/Abp/BlobStoring/Aliyun/AliyunBlobProvider.cs
@@ -19,13 +19,13 @@ namespace Volo.Abp.BlobStoring.Aliyun
             AliyunBlobNameCalculator = aliyunBlobNameCalculator;
         }
 
-        private IOss GetOssClient(BlobContainerConfiguration blobContainerConfiguration)
+        protected virtual IOss GetOssClient(BlobContainerConfiguration blobContainerConfiguration)
         {
             var aliyunConfig = blobContainerConfiguration.GetAliyunConfiguration();
             return OssClientFactory.Create(aliyunConfig);
         }
 
-        private IOss GetOssClient(AliyunBlobProviderConfiguration aliyunConfig)
+        protected virtual IOss GetOssClient(AliyunBlobProviderConfiguration aliyunConfig)
         {
             return OssClientFactory.Create(aliyunConfig);
         }
@@ -57,9 +57,11 @@ namespace Volo.Abp.BlobStoring.Aliyun
             var containerName = GetContainerName(args);
             var blobName = AliyunBlobNameCalculator.Calculate(args);
             var ossClient = GetOssClient(args.Configuration);
-            var result = ossClient.DeleteObject(containerName, blobName);
-            //TODO: undifend delete flag
-            //https://help.aliyun.com/document_detail/91924.html
+            if(!BlobExistsAsync(ossClient, containerName, blobName))
+            {
+                return Task.FromResult(false);
+            }
+            ossClient.DeleteObject(containerName, blobName);
             return Task.FromResult(true);
         }
 
@@ -71,7 +73,7 @@ namespace Volo.Abp.BlobStoring.Aliyun
             return Task.FromResult(BlobExistsAsync(ossClient, containerName, blobName));
         }
 
-        public override Task<Stream> GetOrNullAsync(BlobProviderGetArgs args)
+        public override async Task<Stream> GetOrNullAsync(BlobProviderGetArgs args)
         {
             var containerName = GetContainerName(args);
             var blobName = AliyunBlobNameCalculator.Calculate(args);
@@ -81,7 +83,9 @@ namespace Volo.Abp.BlobStoring.Aliyun
                 return null;
             }
             var result = ossClient.GetObject(containerName, blobName);
-            return Task.FromResult(result.Content);
+            var memoryStream = new MemoryStream();
+            await result.Content.CopyToAsync(memoryStream);
+            return memoryStream;
         }
 
         private static string GetContainerName(BlobProviderArgs args)
diff --git a/framework/src/Volo.Abp.BlobStoring.Aliyun/Volo/Abp/BlobStoring/Aliyun/DefaultOssClientFactory.cs b/framework/src/Volo.Abp.BlobStoring.Aliyun/Volo/Abp/BlobStoring/Aliyun/DefaultOssClientFactory.cs
index 8b8e466232..8f69603f7c 100644
--- a/framework/src/Volo.Abp.BlobStoring.Aliyun/Volo/Abp/BlobStoring/Aliyun/DefaultOssClientFactory.cs
+++ b/framework/src/Volo.Abp.BlobStoring.Aliyun/Volo/Abp/BlobStoring/Aliyun/DefaultOssClientFactory.cs
@@ -16,11 +16,11 @@ namespace Volo.Abp.BlobStoring.Aliyun
     /// </summary>
     public class DefaultOssClientFactory : IOssClientFactory, ITransientDependency
     {
-        private readonly IDistributedCache<AssumeRoleCredentialsCacheItem> _cache;
+        protected IDistributedCache<AssumeRoleCredentialsCacheItem> Cache { get; }
         public DefaultOssClientFactory(
             IDistributedCache<AssumeRoleCredentialsCacheItem> cache)
         {
-            _cache = cache;
+            Cache = cache;
         }
 
         public virtual IOss Create(AliyunBlobProviderConfiguration aliyunConfig)
@@ -34,7 +34,7 @@ namespace Volo.Abp.BlobStoring.Aliyun
             {
                 //STS temporary authorization to access OSS
                 var key = aliyunConfig.ToKeyString();
-                var cacheItem = _cache.Get(key);
+                var cacheItem = Cache.Get(key);
                 if (cacheItem == null)
                 {
                     IClientProfile profile = DefaultProfile.GetProfile(
@@ -55,7 +55,7 @@ namespace Volo.Abp.BlobStoring.Aliyun
                     };
                     var response = client.GetAcsResponse(request);
                     cacheItem = new AssumeRoleCredentialsCacheItem(response.Credentials.AccessKeyId, response.Credentials.AccessKeySecret, response.Credentials.SecurityToken);
-                    _cache.Set(key, cacheItem, new DistributedCacheEntryOptions()
+                    Cache.Set(key, cacheItem, new DistributedCacheEntryOptions()
                     {
                         //Subtract 10 seconds of network request time.
                         AbsoluteExpirationRelativeToNow = TimeSpan.FromSeconds(aliyunConfig.DurationSeconds - 10)
diff --git a/framework/test/Volo.Abp.BlobStoring.Aliyun.Tests/Volo.Abp.BlobStoring.Aliyun.Tests.csproj b/framework/test/Volo.Abp.BlobStoring.Aliyun.Tests/Volo.Abp.BlobStoring.Aliyun.Tests.csproj
index 121832cefb..8c5097bd84 100644
--- a/framework/test/Volo.Abp.BlobStoring.Aliyun.Tests/Volo.Abp.BlobStoring.Aliyun.Tests.csproj
+++ b/framework/test/Volo.Abp.BlobStoring.Aliyun.Tests/Volo.Abp.BlobStoring.Aliyun.Tests.csproj
@@ -5,7 +5,7 @@
   <PropertyGroup>
     <TargetFramework>netcoreapp3.1</TargetFramework>
     <RootNamespace />
-    <UserSecretsId>fe9a87da-3584-40e0-a06c-aa499936015d</UserSecretsId>
+    <UserSecretsId>9f0d2c00-80c1-435b-bfab-2c39c8249091</UserSecretsId>
   </PropertyGroup>
 
   <ItemGroup>
diff --git a/framework/test/Volo.Abp.BlobStoring.Aliyun.Tests/Volo/Abp/BlobStoring/Aliyun/AbpBlobStoringAliyunTestModule.cs b/framework/test/Volo.Abp.BlobStoring.Aliyun.Tests/Volo/Abp/BlobStoring/Aliyun/AbpBlobStoringAliyunTestModule.cs
index 6c14cebbb8..1635e3390f 100644
--- a/framework/test/Volo.Abp.BlobStoring.Aliyun.Tests/Volo/Abp/BlobStoring/Aliyun/AbpBlobStoringAliyunTestModule.cs
+++ b/framework/test/Volo.Abp.BlobStoring.Aliyun.Tests/Volo/Abp/BlobStoring/Aliyun/AbpBlobStoringAliyunTestModule.cs
@@ -1,6 +1,8 @@
-using Microsoft.Extensions.Configuration;
+using Aliyun.OSS;
+using Microsoft.Extensions.Configuration;
 using Microsoft.Extensions.DependencyInjection;
 using System;
+using System.Linq;
 using Volo.Abp.Modularity;
 
 namespace Volo.Abp.BlobStoring.Aliyun
@@ -19,7 +21,7 @@ namespace Volo.Abp.BlobStoring.Aliyun
     )]
     public class AbpBlobStoringAliyunTestModule : AbpModule
     {
-        private const string UserSecretsId = "fe9a87da-3584-40e0-a06c-aa499936015d";
+        private const string UserSecretsId = "9f0d2c00-80c1-435b-bfab-2c39c8249091";
 
         private AliyunBlobProviderConfiguration _configuration;
         private readonly string _randomContainerName = "abp-aliyun-test-container-" + Guid.NewGuid().ToString("N");
@@ -32,11 +34,11 @@ namespace Volo.Abp.BlobStoring.Aliyun
             }));
 
             var configuration = context.Services.GetConfiguration();
-            var _accessKeyId = configuration["Aliyun:AccessKeyId"];
-            var _accessKeySecret = configuration["Aliyun:AccessKeySecret"];
-            var _endpoint = configuration["Aliyun:Endpoint"];
-            var _regionId = configuration["Aliyun:RegionId"];
-            var _roleArn = configuration["Aliyun:RoleArn"];
+            var accessKeyId = configuration["Aliyun:AccessKeyId"];
+            var accessKeySecret = configuration["Aliyun:AccessKeySecret"];
+            var endpoint = configuration["Aliyun:Endpoint"];
+            var regionId = configuration["Aliyun:RegionId"];
+            var roleArn = configuration["Aliyun:RoleArn"];
 
             Configure<AbpBlobStoringOptions>(options =>
             {
@@ -44,14 +46,14 @@ namespace Volo.Abp.BlobStoring.Aliyun
                 {
                     containerConfiguration.UseAliyun(aliyun =>
                     {
-                        aliyun.AccessKeyId = _accessKeyId;
-                        aliyun.AccessKeySecret = _accessKeySecret;
-                        aliyun.Endpoint = _endpoint;
+                        aliyun.AccessKeyId = accessKeyId;
+                        aliyun.AccessKeySecret = accessKeySecret;
+                        aliyun.Endpoint = endpoint;
                         //STS
-                        aliyun.RegionId = _regionId;
-                        aliyun.RoleArn = _roleArn;
+                        aliyun.RegionId = regionId;
+                        aliyun.RoleArn = roleArn;
                         aliyun.RoleSessionName = Guid.NewGuid().ToString("N");
-                        aliyun.DurationSeconds = 3600;
+                        aliyun.DurationSeconds = 0;
                         aliyun.Policy = String.Empty;
                         //Other
                         aliyun.CreateContainerIfNotExists = true;
@@ -66,7 +68,16 @@ namespace Volo.Abp.BlobStoring.Aliyun
         {
             var ossClientFactory = context.ServiceProvider.GetService<IOssClientFactory>();
             var ossClient = ossClientFactory.Create(_configuration);
-            ossClient.DeleteBucket(_randomContainerName);
+            if(ossClient.DoesBucketExist(_randomContainerName))
+            {
+                var objects = ossClient.ListObjects(_randomContainerName);
+                if (objects.ObjectSummaries.Any())
+                {
+                    ossClient.DeleteObjects(new DeleteObjectsRequest(_randomContainerName,
+                        objects.ObjectSummaries.Select(o => o.Key).ToList()));
+                }
+                ossClient.DeleteBucket(_randomContainerName);
+            }
         }
 
     }