diff --git a/IRaCIS.Core.Application/Helper/OSSService.cs b/IRaCIS.Core.Application/Helper/OSSService.cs
index 88d3c86e5..78944ddb7 100644
--- a/IRaCIS.Core.Application/Helper/OSSService.cs
+++ b/IRaCIS.Core.Application/Helper/OSSService.cs
@@ -156,7 +156,9 @@ public interface IOSSService
 
     public ObjectStoreDTO GetObjectStoreTempToken();
 
-    public  Task MoveObject(string sourcePath, string destPath, bool overwrite = true);
+    public Task MoveObject(string sourcePath, string destPath, bool overwrite = true);
+
+    public long GetObjectSizeAsync(string sourcePath);
 }
 
 
@@ -700,7 +702,7 @@ public class OSSService : IOSSService
                     };
                     await amazonS3Client.DeleteObjectAsync(deleteRequest);
 
-                  
+
                 }
                 catch (AmazonS3Exception ex)
                 {
@@ -711,9 +713,9 @@ public class OSSService : IOSSService
                 break;
             default:
                 throw new BusinessValidationFailedException("ERROR");
-             
+
         }
-      
+
     }
 
     /// <summary>
@@ -998,6 +1000,78 @@ public class OSSService : IOSSService
         }
     }
 
+    public async Task<long> GetObjectSizeAsync(string sourcePath)
+    {
+        GetObjectStoreTempToken();
+
+        var objectkey = sourcePath.Trim('/');
+
+        if (ObjectStoreServiceOptions.ObjectStoreUse == "AliyunOSS")
+        {
+            var aliConfig = ObjectStoreServiceOptions.AliyunOSS;
+
+            var _ossClient = new OssClient(RuntimeInformation.IsOSPlatform(OSPlatform.Windows) ? aliConfig.EndPoint : aliConfig.InternalEndpoint, AliyunOSSTempToken.AccessKeyId, AliyunOSSTempToken.AccessKeySecret, AliyunOSSTempToken.SecurityToken);
+
+            var metadata = _ossClient.GetObjectMetadata(aliConfig.BucketName, objectkey);
+
+            long fileSize = metadata.ContentLength; // 文件大小（字节）
+
+            return fileSize;
+        }
+        else if (ObjectStoreServiceOptions.ObjectStoreUse == "MinIO")
+        {
+            var minIOConfig = ObjectStoreServiceOptions.MinIO;
+
+
+            var minioClient = new MinioClient().WithEndpoint($"{minIOConfig.EndPoint}:{minIOConfig.Port}")
+                .WithCredentials(minIOConfig.AccessKeyId, minIOConfig.SecretAccessKey).WithSSL(minIOConfig.UseSSL)
+            .Build();
+
+
+            var stat = await minioClient.StatObjectAsync(new Minio.DataModel.Args.StatObjectArgs()
+                 .WithBucket(minIOConfig.BucketName)
+                 .WithObject(objectkey));
+
+            return stat.Size; // 文件大小（字节）
+        }
+        else if (ObjectStoreServiceOptions.ObjectStoreUse == "AWS")
+        {
+
+            var awsConfig = ObjectStoreServiceOptions.AWS;
+
+
+            // 提供awsAccessKeyId和awsSecretAccessKey构造凭证
+            var credentials = new SessionAWSCredentials(AWSTempToken.AccessKeyId, AWSTempToken.SecretAccessKey, AWSTempToken.SessionToken);
+
+            //提供awsEndPoint（域名）进行访问配置
+            var clientConfig = new AmazonS3Config
+            {
+                RegionEndpoint = RegionEndpoint.USEast1,
+                UseHttp = true,
+            };
+
+            var request = new Amazon.S3.Model.GetObjectMetadataRequest
+            {
+                BucketName = awsConfig.BucketName,
+                Key = objectkey
+            };
+
+            var amazonS3Client = new AmazonS3Client(credentials, clientConfig);
+
+            var response = await amazonS3Client.GetObjectMetadataAsync(request);
+
+            long fileSize = response.ContentLength; // 文件大小（字节）
+
+            return fileSize;
+
+        }
+        else
+        {
+            throw new BusinessValidationFailedException("未定义的存储介质类型");
+        }
+    }
+
+
 
     public ObjectStoreDTO GetObjectStoreTempToken()
     {
@@ -1041,7 +1115,7 @@ public class OSSService : IOSSService
                 BucketName = ossOptions.BucketName,
                 EndPoint = ossOptions.EndPoint,
                 ViewEndpoint = ossOptions.ViewEndpoint,
-                PreviewEndpoint=ossOptions.PreviewEndpoint
+                PreviewEndpoint = ossOptions.PreviewEndpoint
 
             };