diff --git a/lib/notion/getNotionConfig.js b/lib/notion/getNotionConfig.js
index 2bdf34db294..9a8c5072350 100644
--- a/lib/notion/getNotionConfig.js
+++ b/lib/notion/getNotionConfig.js
@@ -157,8 +157,8 @@ export async function getConfigMapFromConfigPage(allPages) {
       // 只导入生效的配置
       if (config.enable) {
         // console.log('[Notion配置]', config.key, config.value)
-        notionConfig[config.key] = config.value || ''
-        // 配置不能是undefined，至少是空字符串
+        notionConfig[config.key] = config.value || null
+        // 配置不能是undefined，至少是null
       }
     }
   }
diff --git a/lib/notion/getPageProperties.js b/lib/notion/getPageProperties.js
index 44f050c54b4..f2690821829 100644
--- a/lib/notion/getPageProperties.js
+++ b/lib/notion/getPageProperties.js
@@ -245,12 +245,15 @@ function generateCustomizeSlug(postProperties, NOTION_CONFIG) {
   let fullPrefix = ''
   let allSlugPatterns = NOTION_CONFIG?.POST_URL_PREFIX
   if (allSlugPatterns === undefined) {
-    allSlugPatterns = siteConfig('POST_URL_PREFIX', '', NOTION_CONFIG).split(
-      '/'
-    )
+    allSlugPatterns = siteConfig(
+      'POST_URL_PREFIX',
+      BLOG.POST_URL_PREFIX,
+      NOTION_CONFIG
+    ).split('/')
   } else {
     allSlugPatterns = allSlugPatterns.split('/')
   }
+
   const POST_URL_PREFIX_MAPPING_CATEGORY = siteConfig(
     'POST_URL_PREFIX_MAPPING_CATEGORY',
     {},