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 3b13415..0471141 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
@@ -1290,12 +1290,13 @@ public class EdFileInfoServiceImpl extends ServiceImpl<EdFileInfoMapper, EdFileI
      */
     @Override
     public ResponseEntity<InputStreamResource> preview(String id, HttpServletResponse response, int dataOwnCode) {
+        String fileSaveTmpPath = null;
         try {
             EdFileInfo fileInfo = this.baseMapper.selectById(id);
             Assert.isTrue(Objects.nonNull(fileInfo), "文件不存在");
             String fileDbPath = commonService.getDbPath(fileInfo.getFilePath());
             String fileSysPath = commonService.getFileSysPath(fileInfo.getId());
-            String fileSaveTmpPath = elePropertyConfig.getEleTmpPath() + File.separator + IdUtil.fastSimpleUUID() + "." + fileInfo.getFileType();
+            fileSaveTmpPath = elePropertyConfig.getEleTmpPath() + File.separator + IdUtil.fastSimpleUUID() + "." + fileInfo.getFileType();
             FileUtil.copy(fileSysPath, fileSaveTmpPath, true);
             EleCommonUtil.decryptFile(fileSaveTmpPath, SecureUtil.aes(FILE_SEC_PASSWD.getBytes()));
 
@@ -1314,7 +1315,7 @@ public class EdFileInfoServiceImpl extends ServiceImpl<EdFileInfoMapper, EdFileI
             FileSystemResource fileSystemResource = new FileSystemResource(fileSaveTmpPath);
             String fileName = fileSystemResource.getFilename();
             HttpHeaders headers = new HttpHeaders();
-
+            InputStream inputStream = fileSystemResource.getInputStream();
             fileName = Base64.encode(fileName.substring(0, fileName.lastIndexOf(".")));
             headers.add(HttpHeaders.CACHE_CONTROL, "no-cache, no-store, must-revalidate");
             headers.add(HttpHeaders.PRAGMA, "no-cache");
@@ -1328,11 +1329,13 @@ public class EdFileInfoServiceImpl extends ServiceImpl<EdFileInfoMapper, EdFileI
                     .headers(headers)
                     .contentLength(fileSystemResource.contentLength())
                     .contentType(MediaType.parseMediaType("application/octet-stream;charset=UTF-8"))
-                    .body(new InputStreamResource(fileSystemResource.getInputStream()));
+                    .body(new InputStreamResource(inputStream));
         } catch (Exception e) {
             String info = StrFormatter.format("文件预览错误，文件id是--->{}，错误信息--->{}", id, e.getMessage());
             log.error(info, e);
             throw new BizException(info);
+        } finally {
+            FileUtil.del(fileSaveTmpPath);
         }
     }