diff --git a/jero-boot/jero-boot-modules/src/main/java/com/jero/modules/project/service/impl/ProjectCertificationInventoryEOServiceImpl.java b/jero-boot/jero-boot-modules/src/main/java/com/jero/modules/project/service/impl/ProjectCertificationInventoryEOServiceImpl.java
index 8704b8c3e..c8cb9ad00 100644
--- a/jero-boot/jero-boot-modules/src/main/java/com/jero/modules/project/service/impl/ProjectCertificationInventoryEOServiceImpl.java
+++ b/jero-boot/jero-boot-modules/src/main/java/com/jero/modules/project/service/impl/ProjectCertificationInventoryEOServiceImpl.java
@@ -4410,9 +4410,12 @@ public class ProjectCertificationInventoryEOServiceImpl extends ServiceImpl<Proj
 			ProjectLibraryBase projectLibraryBase = this.projectLibraryBaseService.selectById(projectLibraryId);
 			List<SysUser> studioEngineerUserInfo = this.sysUserService.querySysUserListByIdList(Arrays.asList(projectLibraryBase.getStudioEngineer().split(",")));
 
-			List<String> certificationEngineerIdList = Arrays.asList(projectLibraryBase.getCertificationEngineer().split(","));
-			List<SysUser> certificationEngineerList = this.sysUserService.querySysUserListByIdList(certificationEngineerIdList);
-			String certificationEngineerUserNames = certificationEngineerList.stream().map(SysUser::getUsername).distinct().collect(Collectors.joining(","));
+			String certificationEngineerUserNames = "";
+			if(StringUtils.isNotBlank(projectLibraryBase.getCertificationEngineer())){
+				List<String> certificationEngineerIdList = Arrays.asList(projectLibraryBase.getCertificationEngineer().split(","));
+				List<SysUser> certificationEngineerList = this.sysUserService.querySysUserListByIdList(certificationEngineerIdList);
+				certificationEngineerUserNames = certificationEngineerList.stream().map(SysUser::getUsername).distinct().collect(Collectors.joining(","));
+			}
 
 			List<ProjectCertificationInventoryLogEO> pciLogEOList = new ArrayList<>();
 			for (ProjectCertificationInventoryEO pci : pciList) {