diff --git a/blade-service/blade-system/src/main/java/org/springblade/system/controller/RegionController.java b/blade-service/blade-system/src/main/java/org/springblade/system/controller/RegionController.java
index 0de1e680..c0ab7473 100644
--- a/blade-service/blade-system/src/main/java/org/springblade/system/controller/RegionController.java
+++ b/blade-service/blade-system/src/main/java/org/springblade/system/controller/RegionController.java
@@ -46,6 +46,7 @@ import org.springblade.core.secure.annotation.PreAuth;
 import org.springblade.core.tenant.annotation.NonDS;
 import org.springblade.core.tool.api.R;
 import org.springblade.core.tool.utils.DateUtil;
+import org.springblade.core.tool.utils.Func;
 import org.springblade.system.pojo.entity.Region;
 import org.springblade.system.excel.RegionExcel;
 import org.springblade.system.excel.RegionExportExcel;
@@ -191,9 +192,18 @@ public class RegionController extends BladeController {
 	@ApiOperationSupport(order = 10)
 	@Operation(summary = "导入行政区划", description = "传入excel")
 	public R importRegion(MultipartFile file, Integer isCovered, HttpServletResponse response) {
-		List<RegionExcel> failureList = regionService.importRegion(ExcelUtil.read(file, RegionExcel.class), Objects.equals(isCovered, 1));
-		if (!failureList.isEmpty()) {
-			org.springblade.common.excel.ImportFailureExcelUtil.export(response, "行政区划导入失败明细" + DateUtil.time(), "导入失败明细", failureList, RegionExcel.class);
+		if (file == null || file.isEmpty()) {
+			return R.fail("上传文件不能为空");
+		}
+		String fileName = Func.toStrWithEmpty(file.getOriginalFilename(), "").toLowerCase();
+		if (!fileName.endsWith(".xls") && !fileName.endsWith(".xlsx")) {
+			return R.fail("请上传 .xls,.xlsx 标准格式文件");
+		}
+		try {
+			regionService.importRegion(ExcelUtil.read(file, RegionExcel.class), Objects.equals(isCovered, 1));
+		} catch (org.springblade.common.excel.ImportFailureException exception) {
+			// 任一行失败即整批回滚，导出原表全部数据并标注错误，用户修正后重新导入。
+			org.springblade.common.excel.ImportFailureExcelUtil.exportFailureReasonOnly(response, "行政区划导入失败明细" + DateUtil.time(), "导入失败明细", exception.getFailureList(), RegionExcel.class);
 			return null;
 		}
 		return R.success("操作成功");
diff --git a/blade-service/blade-system/src/main/java/org/springblade/system/service/impl/RegionServiceImpl.java b/blade-service/blade-system/src/main/java/org/springblade/system/service/impl/RegionServiceImpl.java
index 77ceabc1..a251af29 100644
--- a/blade-service/blade-system/src/main/java/org/springblade/system/service/impl/RegionServiceImpl.java
+++ b/blade-service/blade-system/src/main/java/org/springblade/system/service/impl/RegionServiceImpl.java
@@ -41,6 +41,7 @@ import org.springblade.system.mapper.RegionMapper;
 import org.springblade.system.service.IRegionService;
 import org.springblade.system.pojo.vo.RegionVO;
 import org.springframework.stereotype.Service;
+import org.springframework.transaction.annotation.Transactional;
 
 import java.util.ArrayList;
 import java.util.Date;
@@ -60,6 +61,17 @@ public class RegionServiceImpl extends ServiceImpl<RegionMapper, Region> impleme
 
 	@Override
 	public boolean submit(Region region) {
+		return submit(region, true);
+	}
+
+	/**
+	 * 提交区划，clearCache 控制是否在保存成功后立即清理惰性树缓存。
+	 * <p>
+	 * 批量导入路径传 false：导入内部会收集全部错误，只有整批成功才统一清缓存；
+	 * 若逐行清缓存，失败批次中已成功行会把缓存清掉/重算成中间状态，
+	 * 与随后的事务回滚形成「库回滚了、缓存却是脏的」。
+	 */
+	private boolean submit(Region region, boolean clearCache) {
 		Date now = new Date();
 		Long currentUserId = AuthUtil.getUserId();
 		boolean isNew = StringUtil.isBlank(region.getOriginalCode());
@@ -138,7 +150,7 @@ public class RegionServiceImpl extends ServiceImpl<RegionMapper, Region> impleme
 			region.setVillageName(name);
 		}
 		boolean result = StringUtil.isNotBlank(region.getOriginalCode()) ? this.updateById(region) : this.save(region);
-		if (result) {
+		if (result && clearCache) {
 			clearLazyTree();
 		}
 		return result;
@@ -189,12 +201,15 @@ public class RegionServiceImpl extends ServiceImpl<RegionMapper, Region> impleme
 	}
 
 	@Override
+	@Transactional(rollbackFor = Exception.class)
 	public List<RegionExcel> importRegion(List<RegionExcel> data, Boolean isCovered) {
 		if (Func.isEmpty(data)) {
 			throw new ServiceException("导入数据不能为空");
 		}
+		// 全量校验：任何一行失败都整批回滚，因此先收集所有错误再统一抛出。
+		// 注意不能只往 errorList 里塞数据就 return——异常被吞掉后方法会正常返回，
+		// Spring 会照常提交事务，@Transactional 起不到回滚作用。
 		List<RegionExcel> errorList = new ArrayList<>();
-		boolean cacheChanged = false;
 		for (int index = 0; index < data.size(); index++) {
 			RegionExcel excel = data.get(index);
 			try {
@@ -210,15 +225,20 @@ public class RegionServiceImpl extends ServiceImpl<RegionMapper, Region> impleme
 				if (Boolean.TRUE.equals(isCovered) && this.getById(region.getCode()) != null) {
 					region.setOriginalCode(region.getCode());
 				}
-				cacheChanged = this.submit(region) || cacheChanged;
+				// 导入路径不逐行清缓存，缓存只在整批成功后统一清一次。
+				this.submit(region, false);
 			} catch (Exception exception) {
 				excel.setErrorMessage(exception.getMessage());
 				errorList.add(excel);
 			}
 		}
-		if (cacheChanged) {
-			clearLazyTree();
+		if (Func.isNotEmpty(errorList)) {
+			// 抛出携带失败明细的异常，触发事务回滚。缓存清理在异常抛出后不可达，
+			// 只会发生在成功路径上——避免「库回滚了、惰性树缓存却按失败批次
+			// 的中间状态被清掉/重算」的脏缓存。
+			throw new org.springblade.common.excel.ImportFailureException(data);
 		}
+		clearLazyTree();
 		return errorList;
 	}