diff --git a/blade-service/blade-desk/src/main/java/org/springblade/desk/order/service/impl/YieldOrderServiceImpl.java b/blade-service/blade-desk/src/main/java/org/springblade/desk/order/service/impl/YieldOrderServiceImpl.java
index 42585748..8c981b7a 100644
--- a/blade-service/blade-desk/src/main/java/org/springblade/desk/order/service/impl/YieldOrderServiceImpl.java
+++ b/blade-service/blade-desk/src/main/java/org/springblade/desk/order/service/impl/YieldOrderServiceImpl.java
@@ -1255,6 +1255,7 @@ public class YieldOrderServiceImpl extends BaseServiceImpl<YieldOrderMapper, Yie
 				}
 			}
 			YieldOrder subYield = BeanUtil.copy(yieldOrder, YieldOrder.class);
+			subYield.setYpArea(null);
 			subYield.setFatherYoId(yieldOrder.getId());
 			subYield.setYoCode(nextYieldOrderCode(yieldOrder.getYoCode()));
 			subYield.setPartCode(dsPart.getPartCode());
@@ -1308,25 +1309,24 @@ public class YieldOrderServiceImpl extends BaseServiceImpl<YieldOrderMapper, Yie
 	}
 
 	private String nextYieldOrderCode(String yoCode) {
-		// 自增总长度
-		int len = 2;
-		// 自增值
-		Integer num = 0;
+		String codePattern = yoCode + "-B";
 
-		// 编码模式
-		String codePattern = yoCode.toString() + "-B";
+		// 使用悲观锁查询当前最大编码
+		LambdaQueryWrapper<YieldOrder> wrapper = Wrappers.lambdaQuery(YieldOrder.class)
+				.likeRight(YieldOrder::getYoCode, codePattern)
+				.orderBy(true, false, YieldOrder::getYoCode)
+				.last("FOR UPDATE");
 
-		// 当前模式下最大编码
-		LambdaQueryWrapper<YieldOrder> wrapper = Wrappers.lambdaQuery(YieldOrder.class).likeRight(YieldOrder::getYoCode, codePattern).orderBy(true, false, YieldOrder::getYoCode);
-		YieldOrder yieldOrder = baseMapper.selectOne(wrapper);
+		List<YieldOrder> list = baseMapper.selectList(wrapper);
 
-		if (yieldOrder != null) {
-			num = Integer.parseInt(yieldOrder.getYoCode().substring(codePattern.length()));
+		Integer num = 0;
+		if (!list.isEmpty()) {
+			String maxCode = list.get(0).getYoCode();
+			num = Integer.parseInt(maxCode.substring(codePattern.length()));
 		}
 
 		num++;
-
-		// 下个编码
+		int len = Math.max(2, String.valueOf(num).length());
 		return codePattern + StringPrefixUtils.prefix(String.valueOf(num), "0", len);
 	}