diff --git a/ruoyi-oa/src/main/java/com/ruoyi/oa/service/impl/SysOaProjectServiceImpl.java b/ruoyi-oa/src/main/java/com/ruoyi/oa/service/impl/SysOaProjectServiceImpl.java
index b1f5f7a..b1d1aad 100644
--- a/ruoyi-oa/src/main/java/com/ruoyi/oa/service/impl/SysOaProjectServiceImpl.java
+++ b/ruoyi-oa/src/main/java/com/ruoyi/oa/service/impl/SysOaProjectServiceImpl.java
@@ -227,7 +227,7 @@ public class SysOaProjectServiceImpl implements ISysOaProjectService {
         SysOaProject update = BeanUtil.toBean(bo, SysOaProject.class);
 
         // 当 customerId 为 0 时，设置为 null
-        if (bo.getCustomerId() == 0) {
+        if (bo.getCustomerId() != null && bo.getCustomerId() == 0) {
             update.setCustomerId(null);
         }