diff --git a/src/main/java/com/gxwebsoft/cms/service/impl/CmsPageServiceImpl.java b/src/main/java/com/gxwebsoft/cms/service/impl/CmsPageServiceImpl.java
index 93afe30..f938e33 100644
--- a/src/main/java/com/gxwebsoft/cms/service/impl/CmsPageServiceImpl.java
+++ b/src/main/java/com/gxwebsoft/cms/service/impl/CmsPageServiceImpl.java
@@ -117,7 +117,14 @@ public class CmsPageServiceImpl extends com.baomidou.mybatisplus.extension.servi
         }
         boolean updated = updateById(page);
         if (updated) {
-            bindNavigation(page.getPageId(), page.getNavigationId(), page.getTenantId());
+            // 编辑场景控制器未注入 tenantId，需从库中取回原记录的 tenantId，
+            // 否则 bindNavigation 的 WHERE tenant_id = null 不会命中任何行，关联导航无法写回。
+            Integer tenantId = page.getTenantId();
+            if (tenantId == null) {
+                CmsPage existing = getById(page.getPageId());
+                tenantId = existing != null ? existing.getTenantId() : null;
+            }
+            bindNavigation(page.getPageId(), page.getNavigationId(), tenantId);
         }
         return updated;
     }