diff --git a/electrmangnetic/src/main/java/com/electromagnetic/industry/software/manage/service/serviceimpl/EdFileInfoServiceImpl.java b/electrmangnetic/src/main/java/com/electromagnetic/industry/software/manage/service/serviceimpl/EdFileInfoServiceImpl.java
index 996c226..8a3e431 100644
--- a/electrmangnetic/src/main/java/com/electromagnetic/industry/software/manage/service/serviceimpl/EdFileInfoServiceImpl.java
+++ b/electrmangnetic/src/main/java/com/electromagnetic/industry/software/manage/service/serviceimpl/EdFileInfoServiceImpl.java
@@ -286,7 +286,7 @@ public class EdFileInfoServiceImpl extends ServiceImpl<EdFileInfoMapper, EdFileI
             headers.add("Cache-Control", "no-cache, no-store, must-revalidate");
             headers.add("Pragma", "no-cache");
             headers.add("Expires", "0");
-            String newFileName = Base64.encode(fileName.substring(0, fileName.lastIndexOf(".")));
+            String newFileName = Base64.encode(fileInfo.getFileName() + "." + fileInfo.getFileType());
             response.setHeader("content-disposition", "attachment;filename=" + newFileName);
             UserThreadLocal.setSuccessInfo(fileInfo.getParentId(), fileInfo.getFileId(), "下载文件 {} 成功，文件路径 {}", fileName, dbPath);
             // 构建响应实体(可以返回<byte[]或Resource，返回类型取决body入参类型)