diff --git a/aspnet-core/modules/oss-management/LINGYUN.Abp.OssManagement.Application/LINGYUN/Abp/OssManagement/FileAppServiceBase.cs b/aspnet-core/modules/oss-management/LINGYUN.Abp.OssManagement.Application/LINGYUN/Abp/OssManagement/FileAppServiceBase.cs
index bef3d3b23..43deed492 100644
--- a/aspnet-core/modules/oss-management/LINGYUN.Abp.OssManagement.Application/LINGYUN/Abp/OssManagement/FileAppServiceBase.cs
+++ b/aspnet-core/modules/oss-management/LINGYUN.Abp.OssManagement.Application/LINGYUN/Abp/OssManagement/FileAppServiceBase.cs
@@ -6,6 +6,7 @@
 using System.IO;
 using System.Threading.Tasks;
 using System.Web;
+using Volo.Abp;
 using Volo.Abp.Application.Dtos;
 using Volo.Abp.Content;
 using Volo.Abp.Features;
@@ -103,6 +104,10 @@ public async virtual Task<IRemoteStreamContent> GetAsync(GetPublicFileInput inpu
 
         var ossContainer = OssContainerFactory.Create();
         var ossObject = await ossContainer.GetObjectAsync(ossObjectRequest);
+        if (ossObject == null || ossObject.Content.IsNullOrEmpty())
+        {
+            throw new BusinessException(code: OssManagementErrorCodes.ObjectNotFound);
+        }
 
         return new RemoteStreamContent(ossObject.Content);
     }
diff --git a/aspnet-core/modules/oss-management/LINGYUN.Abp.OssManagement.Application/LINGYUN/Abp/OssManagement/PrivateFileAppService.cs b/aspnet-core/modules/oss-management/LINGYUN.Abp.OssManagement.Application/LINGYUN/Abp/OssManagement/PrivateFileAppService.cs
index 1d381a64f..8326d3309 100644
--- a/aspnet-core/modules/oss-management/LINGYUN.Abp.OssManagement.Application/LINGYUN/Abp/OssManagement/PrivateFileAppService.cs
+++ b/aspnet-core/modules/oss-management/LINGYUN.Abp.OssManagement.Application/LINGYUN/Abp/OssManagement/PrivateFileAppService.cs
@@ -4,8 +4,10 @@
 using Microsoft.Extensions.Caching.Distributed;
 using System;
 using System.Collections.Generic;
+using System.IO;
 using System.Threading.Tasks;
 using System.Web;
+using Volo.Abp;
 using Volo.Abp.Application.Dtos;
 using Volo.Abp.Caching;
 using Volo.Abp.Content;
@@ -61,6 +63,10 @@ public override async Task<IRemoteStreamContent> GetAsync(GetPublicFileInput inp
 
         var ossContainer = OssContainerFactory.Create();
         var ossObject = await ossContainer.GetObjectAsync(ossObjectRequest);
+        if (ossObject == null || ossObject.Content.IsNullOrEmpty())
+        {
+            throw new BusinessException(code: OssManagementErrorCodes.ObjectNotFound);
+        }
 
         return new RemoteStreamContent(ossObject.Content);
     }
diff --git a/aspnet-core/modules/oss-management/LINGYUN.Abp.OssManagement.Application/LINGYUN/Abp/OssManagement/StaticFilesAppService.cs b/aspnet-core/modules/oss-management/LINGYUN.Abp.OssManagement.Application/LINGYUN/Abp/OssManagement/StaticFilesAppService.cs
index 564235bd1..accc38261 100644
--- a/aspnet-core/modules/oss-management/LINGYUN.Abp.OssManagement.Application/LINGYUN/Abp/OssManagement/StaticFilesAppService.cs
+++ b/aspnet-core/modules/oss-management/LINGYUN.Abp.OssManagement.Application/LINGYUN/Abp/OssManagement/StaticFilesAppService.cs
@@ -1,7 +1,9 @@
 using LINGYUN.Abp.Features.LimitValidation;
 using LINGYUN.Abp.OssManagement.Features;
+using System.IO;
 using System.Threading.Tasks;
 using System.Web;
+using Volo.Abp;
 using Volo.Abp.Content;
 using Volo.Abp.Features;
 
@@ -35,6 +37,10 @@ public async virtual Task<IRemoteStreamContent> GetAsync(GetStaticFileInput inpu
 
         var ossContainer = OssContainerFactory.Create();
         var ossObject = await ossContainer.GetObjectAsync(ossObjectRequest);
+        if (ossObject == null || ossObject.Content.IsNullOrEmpty())
+        {
+            throw new BusinessException(code: OssManagementErrorCodes.ObjectNotFound);
+        }
 
         return new RemoteStreamContent(ossObject.Content, ossObject.Name);
     }