diff --git a/oss-http-api/src/main/java/cn/axzo/oss/http/model/ApiSignUrlDownloadResponse.java b/oss-http-api/src/main/java/cn/axzo/oss/http/model/ApiSignUrlDownloadResponse.java
index 9a2cbe5..e695910 100644
--- a/oss-http-api/src/main/java/cn/axzo/oss/http/model/ApiSignUrlDownloadResponse.java
+++ b/oss-http-api/src/main/java/cn/axzo/oss/http/model/ApiSignUrlDownloadResponse.java
@@ -32,6 +32,6 @@ public class ApiSignUrlDownloadResponse {
     /**
      * 文件大小
      */
-    private Long fileSize;
+    private Long storageSize;
 
 }
diff --git a/oss-manager-api/src/main/java/cn/axzo/oss/manager/api/dto/response/SignUrlDownloadResponse.java b/oss-manager-api/src/main/java/cn/axzo/oss/manager/api/dto/response/SignUrlDownloadResponse.java
index 3860b4b..f031a05 100644
--- a/oss-manager-api/src/main/java/cn/axzo/oss/manager/api/dto/response/SignUrlDownloadResponse.java
+++ b/oss-manager-api/src/main/java/cn/axzo/oss/manager/api/dto/response/SignUrlDownloadResponse.java
@@ -33,6 +33,6 @@ public class SignUrlDownloadResponse {
     /**
      * 文件大小
      */
-    private Long fileSize;
+    private Long storageSize;
 
 }
diff --git a/oss-service/src/main/java/cn/axzo/oss/service/impl/FileServiceImpl.java b/oss-service/src/main/java/cn/axzo/oss/service/impl/FileServiceImpl.java
index 9352089..2c84b2f 100644
--- a/oss-service/src/main/java/cn/axzo/oss/service/impl/FileServiceImpl.java
+++ b/oss-service/src/main/java/cn/axzo/oss/service/impl/FileServiceImpl.java
@@ -981,7 +981,7 @@ public class FileServiceImpl implements FileService {
                             .signUrl(this.fileManager.buildPublicXImageProcess(url, style))
                             .fileKey(item.getFileUuid())
                             .fileName(item.getFileName())
-                            .fileSize(item.fetchFileSize())
+                            .storageSize(item.fetchFileSize())
                             .build();
                 case PRIVATE_BUCKET://私有桶 - 临时授权链接 例如 http://xxx.png?Expire=a&AccessKeyId=b&Signature=c&repsonse-content-disposition=d
                     String signUrl = this.fileManager.signUrlDownload(item.getBucketName(), tgtFileKey, Objects.nonNull(expire) ? expire : SIGN_URL_DOWNLOAD_EXPIRE_SECOND , item.getChannelCode(), item.getFileName(), style, hasFileName);
@@ -989,7 +989,7 @@ public class FileServiceImpl implements FileService {
                             .signUrl(UrlUtil.httpToHttps(signUrl))
                             .fileKey(item.getFileUuid())
                             .fileName(item.getFileName())
-                            .fileSize(item.fetchFileSize())
+                            .storageSize(item.fetchFileSize())
                             .build();
                 default:
                     BizException.error(CodeEnum.CHANNEL_TYPE_NOT_EXIST);