diff --git a/zt-module-contract-order/zt-module-contract-order-server/src/main/java/com/zt/plat/module/contractorder/service/contract/ContractServiceImpl.java b/zt-module-contract-order/zt-module-contract-order-server/src/main/java/com/zt/plat/module/contractorder/service/contract/ContractServiceImpl.java
index f02f2c7..ab19798 100644
--- a/zt-module-contract-order/zt-module-contract-order-server/src/main/java/com/zt/plat/module/contractorder/service/contract/ContractServiceImpl.java
+++ b/zt-module-contract-order/zt-module-contract-order-server/src/main/java/com/zt/plat/module/contractorder/service/contract/ContractServiceImpl.java
@@ -921,13 +921,9 @@ public class ContractServiceImpl implements ContractService {
         }
 
         // 更新合同主信息
-        contractMainMapper.updateById(newContractMainDO);
-        // 模板实例ID更新为null
-        if (newContractMainDO.getInstanceId() == null) {
-            contractMainMapper.update(new LambdaUpdateWrapper<>(ContractMainDO.class)
-                    .set(ContractMainDO::getInstanceId, null)
-                    .eq(ContractMainDO::getId, newContractMainDO.getId()));
-        }
+        contractMainMapper.update(newContractMainDO, new LambdaUpdateWrapper<>(ContractMainDO.class)
+                .set(ContractMainDO::getInstanceId, newContractMainDO.getInstanceId())
+                .eq(ContractMainDO::getId, newContractMainDO.getId()));
 
         if (DictEnum.BSE_CTRT_STS_IN_PROGRESS.getCode().equals(newContractMainDO.getStatus())) {
             // 执行中合同重新提交erp