diff --git a/laws-modules/src/main/java/com/jero/modules/laws/standard/service/impl/LawsEnterpriseStandardServiceImpl.java b/laws-modules/src/main/java/com/jero/modules/laws/standard/service/impl/LawsEnterpriseStandardServiceImpl.java
index a6f1c444..0fe4ff69 100644
--- a/laws-modules/src/main/java/com/jero/modules/laws/standard/service/impl/LawsEnterpriseStandardServiceImpl.java
+++ b/laws-modules/src/main/java/com/jero/modules/laws/standard/service/impl/LawsEnterpriseStandardServiceImpl.java
@@ -3,6 +3,7 @@ package com.jero.modules.laws.standard.service.impl;
 import cn.hutool.core.io.FileUtil;
 import cn.hutool.core.util.StrUtil;
 import com.baomidou.mybatisplus.core.conditions.query.LambdaQueryWrapper;
+import com.baomidou.mybatisplus.core.conditions.update.LambdaUpdateWrapper;
 import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;
 import com.jero.common.api.CommonAPI;
 import com.jero.common.api.vo.ResultCommon;
@@ -199,12 +200,12 @@ public class LawsEnterpriseStandardServiceImpl extends ServiceImpl<LawsEnterpris
     public void exportWithExcel(HttpServletResponse response, List<OldSystemImportDTO> dtoList) {
         try {
             // 设置导出参数
-            ExportParams exportParams = new ExportParams(null, "有问题的老法规"); // 可以为标题添加更多的配置
+            ExportParams exportParams = new ExportParams(null, "ProblemOldStandard.xls"); // 可以为标题添加更多的配置
             Workbook workbook = ExcelExportUtil.exportExcel(exportParams, OldSystemImportDTO.class, dtoList);
 
             // 设置响应头和内容类型
             response.setContentType("application/vnd.ms-excel");
-            response.setHeader("Content-Disposition", "attachment; filename=有问题的老法规.xls");
+            response.setHeader("Content-Disposition", "attachment; filename=ProblemOldStandard.xls");
 
             // 写出到响应流
             workbook.write(response.getOutputStream());
@@ -448,6 +449,10 @@ public class LawsEnterpriseStandardServiceImpl extends ServiceImpl<LawsEnterpris
             if (existingEntity != null) {
                 // 如果存在，则先删后增
                 this.removeById(existingEntity.getId());
+                // 删除文件关联
+                LambdaUpdateWrapper<OSSFile> wrapper = new LambdaUpdateWrapper<>();
+                wrapper.eq(OSSFile::getStandardId, existingEntity.getId());
+                ossFileService.remove(wrapper);
                 // 代替
                 lawsReplacedStandardService.removeRelation(existingEntity.getStandardNumber(), 1);
             }
@@ -471,9 +476,12 @@ public class LawsEnterpriseStandardServiceImpl extends ServiceImpl<LawsEnterpris
             // 保存文件关联
             String standardId = entity.getId();
             // 保存文件关联
-            OSSFile ossFile = standardNumberToFileMap.get(entity.getStandardNumber()).get(0);
-            ossFile.setStandardId(standardId);
-            ossFileService.save(ossFile);
+            List<OSSFile> ossFiles = standardNumberToFileMap.get(entity.getStandardNumber());
+            if (ossFiles != null && !ossFiles.isEmpty()) {
+                OSSFile ossFile = ossFiles.get(0);
+                ossFile.setStandardId(standardId);
+                ossFileService.save(ossFile);
+            }
         }
         log.info("老法规企标覆盖导入完成");
         // 获取当前时间戳（毫秒）