diff --git a/urbanops-module-garden/src/main/java/com/zteits/urbanops/module/garden/service/emergencytask/EmergencyExportNewHandler.java b/urbanops-module-garden/src/main/java/com/zteits/urbanops/module/garden/service/emergencytask/EmergencyExportNewHandler.java
index f20a110..4b478d6 100644
--- a/urbanops-module-garden/src/main/java/com/zteits/urbanops/module/garden/service/emergencytask/EmergencyExportNewHandler.java
+++ b/urbanops-module-garden/src/main/java/com/zteits/urbanops/module/garden/service/emergencytask/EmergencyExportNewHandler.java
@@ -56,8 +56,10 @@ public class EmergencyExportNewHandler implements ExcelExportHandler<EmergencyTa
 
         List<EmergencyTaskExcleNewRespVO> respList = new ArrayList<>(sourceList.size());
 
+        List<String> imgUrls = new ArrayList<>(4);
         // 合并图片收集+下载，减少一次全量遍历
         for (EmergencyTaskRespVO task : sourceList) {
+            imgUrls.clear(); // 清空复用
             EmergencyTaskExcleNewRespVO vo = new EmergencyTaskExcleNewRespVO();
             // 全局行号，跨分片连续不重复
             vo.setTaskNo(String.valueOf(startIndex++));
@@ -82,7 +84,7 @@ public class EmergencyExportNewHandler implements ExcelExportHandler<EmergencyTa
             // 图片处理（一次组装、一次下载，精简逻辑）
             List<String> emergencyImgs = Optional.ofNullable(task.getEmergencyImg()).orElse(Collections.emptyList());
             List<String> endImgs = Optional.ofNullable(task.getEmergencyEndImg()).orElse(Collections.emptyList());
-            List<String> imgUrls = new ArrayList<>(4);
+
             imgUrls.add(ImgDownUtils.getImgSafe(emergencyImgs, 0));
             imgUrls.add(ImgDownUtils.getImgSafe(emergencyImgs, 1));
             imgUrls.add(ImgDownUtils.getImgSafe(emergencyImgs, 2));
diff --git a/urbanops-module-garden/src/main/java/com/zteits/urbanops/module/garden/service/filedownload/ExcelExportAsyncService.java b/urbanops-module-garden/src/main/java/com/zteits/urbanops/module/garden/service/filedownload/ExcelExportAsyncService.java
index 155b188..771200f 100644
--- a/urbanops-module-garden/src/main/java/com/zteits/urbanops/module/garden/service/filedownload/ExcelExportAsyncService.java
+++ b/urbanops-module-garden/src/main/java/com/zteits/urbanops/module/garden/service/filedownload/ExcelExportAsyncService.java
@@ -29,7 +29,7 @@ public class ExcelExportAsyncService {
     @Value("${file.upload-local.expire-days}")
     private Integer expireDay;
 
-    public static final int BATCH_SIZE = 500;
+    public static final int BATCH_SIZE = 50;
 
     private final FileDownloadMapper fileDownloadMapper;