diff --git a/xtools-app-sys/xtools-app-sys-file-web/src/main/java/xtools/app/sys/file/web/controller/SysCommonFileController.java b/xtools-app-sys/xtools-app-sys-file-web/src/main/java/xtools/app/sys/file/web/controller/SysCommonFileController.java
index 2d77b27..91238af 100644
--- a/xtools-app-sys/xtools-app-sys-file-web/src/main/java/xtools/app/sys/file/web/controller/SysCommonFileController.java
+++ b/xtools-app-sys/xtools-app-sys-file-web/src/main/java/xtools/app/sys/file/web/controller/SysCommonFileController.java
@@ -16,6 +16,7 @@ import xtools.app.sys.file.service.SysFileDownloadCallback;
 import xtools.app.sys.file.service.SysFileOptService;
 import xtools.app.sys.model.dto.resp.SysFileResp;
 import xtools.boot.api.exection.BizError;
+import xtools.core.enums.ImageTypeEnum;
 import xtools.core.extend.TemplateUtils;
 
 import java.io.IOException;
@@ -61,9 +62,15 @@ public class SysCommonFileController {
                         return false;
                     }
 
+                    // 判断文件是否为图片
+                    ImageTypeEnum imageType = ImageTypeEnum.bySuffix(fileInfo.getFileType());
+
                     String fileName = URLEncoder.encode(fileInfo.getFileName(), StandardCharsets.UTF_8).replaceAll("\\+", "%20");
                     String contentDisposition = "attachment; filename=\"{}\"; filename*=UTF-8''{}";
                     response.setHeader("Content-Disposition", TemplateUtils.format(contentDisposition, fileName, fileName));
+                    if (!ImageTypeEnum.UNKNOWN.equals(imageType)) {
+                        response.setHeader("Content-Type", imageType.getContentType());
+                    }
                     response.setContentLengthLong(fileInfo.getFileSize());
                     return true;
                 }