diff --git a/cf-module-system/cf-module-system-biz/src/main/java/com/cf/imes/module/system/service/process/ProcessServiceImpl.java b/cf-module-system/cf-module-system-biz/src/main/java/com/cf/imes/module/system/service/process/ProcessServiceImpl.java
index e7546097a..db4a0ef06 100644
--- a/cf-module-system/cf-module-system-biz/src/main/java/com/cf/imes/module/system/service/process/ProcessServiceImpl.java
+++ b/cf-module-system/cf-module-system-biz/src/main/java/com/cf/imes/module/system/service/process/ProcessServiceImpl.java
@@ -87,7 +87,7 @@ public class ProcessServiceImpl implements ProcessService {
 
         processUserService.deleteProcessUserByProcess(updateReqVO.getId());
         // 确保updateReqVO不是null，避免NullPointerException
-        if (updateReqVO != null && (updateReqVO.getUsers() != null || updateReqVO.getUsers() != "")) {
+        if (updateReqVO != null && updateReqVO.getUsers() != null && updateReqVO.getUsers() != "") {
             String[] usersId = updateReqVO.getUsers().split(",");
             for (String user : usersId) {
                 // 增加了对无法解析的用户ID的异常处理
diff --git a/cf-module-system/cf-module-system-biz/src/main/java/com/cf/imes/module/system/service/process/ProcessUserServiceImpl.java b/cf-module-system/cf-module-system-biz/src/main/java/com/cf/imes/module/system/service/process/ProcessUserServiceImpl.java
index df733a6e0..2bfba592f 100644
--- a/cf-module-system/cf-module-system-biz/src/main/java/com/cf/imes/module/system/service/process/ProcessUserServiceImpl.java
+++ b/cf-module-system/cf-module-system-biz/src/main/java/com/cf/imes/module/system/service/process/ProcessUserServiceImpl.java
@@ -44,7 +44,9 @@ public class ProcessUserServiceImpl implements ProcessUserService {
     @Override
     public void updateProcessUser(ProcessAndUserSaveReqVO updateReqVO) {
         // 校验存在
-        validateProcessUserExists(updateReqVO.getProcessId());
+        if (processUserMapper.selectById(updateReqVO.getProcessId(), updateReqVO.getUserId()).size() != 0) {
+            throw exception(PROCESS_USER_EXISTS);
+        }
         // 更新
         ProcessUserDO updateObj = BeanUtils.toBean(updateReqVO, ProcessUserDO.class);
         processUserMapper.updateById(updateObj);