diff --git a/blade-service/blade-transport/src/main/java/org/springblade/transport/controller/PreSettlementController.java b/blade-service/blade-transport/src/main/java/org/springblade/transport/controller/PreSettlementController.java
index 0892b50e..e337b9a1 100644
--- a/blade-service/blade-transport/src/main/java/org/springblade/transport/controller/PreSettlementController.java
+++ b/blade-service/blade-transport/src/main/java/org/springblade/transport/controller/PreSettlementController.java
@@ -94,6 +94,13 @@ public class PreSettlementController extends BladeController {
 		return R.data(preSettlementService.contractOptions(keyword));
 	}
 
+	@GetMapping("/next-no")
+	@ApiOperationSupport(order = 4)
+	@Operation(summary = "获取最新预结算单号")
+	public R<String> nextNo() {
+		return R.data(preSettlementService.nextNo());
+	}
+
 	@GetMapping("/fee-options")
 	@ApiOperationSupport(order = 4)
 	@Operation(summary = "费用类型及费用项")
diff --git a/blade-service/blade-transport/src/main/java/org/springblade/transport/service/IPreSettlementService.java b/blade-service/blade-transport/src/main/java/org/springblade/transport/service/IPreSettlementService.java
index 28af8ada..c24b7240 100644
--- a/blade-service/blade-transport/src/main/java/org/springblade/transport/service/IPreSettlementService.java
+++ b/blade-service/blade-transport/src/main/java/org/springblade/transport/service/IPreSettlementService.java
@@ -33,6 +33,11 @@ public interface IPreSettlementService extends BaseService<PreSettlement> {
 
 	PreSettlementVO detail(Long id);
 
+	/**
+	 * 预览下一条预结算单号。仅供新增页面展示，真正落库的单号仍由保存时生成。
+	 */
+	String nextNo();
+
 	default List<Map<String, Object>> contractOptions(String keyword) {
 		return contractOptions(keyword, null);
 	}
diff --git a/blade-service/blade-transport/src/main/java/org/springblade/transport/service/impl/PreSettlementServiceImpl.java b/blade-service/blade-transport/src/main/java/org/springblade/transport/service/impl/PreSettlementServiceImpl.java
index 86f5eafe..6e9dd27e 100644
--- a/blade-service/blade-transport/src/main/java/org/springblade/transport/service/impl/PreSettlementServiceImpl.java
+++ b/blade-service/blade-transport/src/main/java/org/springblade/transport/service/impl/PreSettlementServiceImpl.java
@@ -206,6 +206,11 @@ public class PreSettlementServiceImpl extends BaseServiceImpl<PreSettlementMappe
 		return vo;
 	}
 
+	@Override
+	public String nextNo() {
+		return nextPreSettlementNo();
+	}
+
 	@Override
 	public List<Map<String, Object>> contractOptions(String keyword, Long projectId) {
 		LambdaQueryWrapper<ContractManage> wrapper = Wrappers.<ContractManage>lambdaQuery()