diff --git a/blade-service/blade-transport/src/main/java/org/springblade/transport/service/impl/FormalSettlementServiceImpl.java b/blade-service/blade-transport/src/main/java/org/springblade/transport/service/impl/FormalSettlementServiceImpl.java
index 38c417e3..0fb96a73 100644
--- a/blade-service/blade-transport/src/main/java/org/springblade/transport/service/impl/FormalSettlementServiceImpl.java
+++ b/blade-service/blade-transport/src/main/java/org/springblade/transport/service/impl/FormalSettlementServiceImpl.java
@@ -2061,7 +2061,8 @@ public class FormalSettlementServiceImpl extends BaseServiceImpl<FormalSettlemen
 				.orderByAsc(FormalSettlementDetailFee::getLineNo)).stream()
 			.collect(Collectors.groupingBy(FormalSettlementDetailFee::getFormalSettlementDetailId, LinkedHashMap::new, Collectors.toList()));
 		for (FormalSettlementDetail detail : details) {
-			Waybill waybill = waybillMap.get(detail.getWaybillId());
+			// waybillMap 为不可变空 Map（全部明细均无运单号时），get(null) 会抛 NPE，需先判空
+			Waybill waybill = detail.getWaybillId() == null ? null : waybillMap.get(detail.getWaybillId());
 			LinkedHashSet<String> goodsNames = new LinkedHashSet<>();
 			LinkedHashSet<String> goodsTypes = new LinkedHashSet<>();
 			if (waybill != null) {
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