diff --git a/src/main/java/com/zhgd/xmgl/modules/project/service/impl/ProjectServiceImpl.java b/src/main/java/com/zhgd/xmgl/modules/project/service/impl/ProjectServiceImpl.java
index aaadf53e5..6f7773761 100644
--- a/src/main/java/com/zhgd/xmgl/modules/project/service/impl/ProjectServiceImpl.java
+++ b/src/main/java/com/zhgd/xmgl/modules/project/service/impl/ProjectServiceImpl.java
@@ -285,6 +285,7 @@ public class ProjectServiceImpl extends ServiceImpl<ProjectMapper, Project> impl
 
     @Override
     public void saveProject(Project project) {
+        project.setProjectId(null);
         QueryWrapper<Company> queryWrapper = new QueryWrapper<>();
         queryWrapper.lambda().eq(Company::getCompanySn, project.getCompanySn());
         Company company = companyService.getOne(queryWrapper);