diff --git a/next/api/src/service/openai.ts b/next/api/src/service/openai.ts
index e1ba41163..5d48a066b 100644
--- a/next/api/src/service/openai.ts
+++ b/next/api/src/service/openai.ts
@@ -14,7 +14,9 @@ export const TicketClassifyPrompt = (categories: Category[]) => `
 """
 以下是各种分类的 ID 以及他们的含义，由 '-' 开头，每个占一行：
 ${categories
-  .map(({ id, meta }) => meta?.aiDescription && `- ${id}：${meta.aiDescription}`)
+  .map(
+    ({ id, meta, hidden }) => !hidden && !!meta?.aiDescription && `- ${id}：${meta.aiDescription}`
+  )
   .filter(Boolean)
   .join('\n')}
 `;
diff --git a/next/web/src/App/Admin/Settings/Categories/CategoryForm.tsx b/next/web/src/App/Admin/Settings/Categories/CategoryForm.tsx
index a70c0f89b..4e781470d 100644
--- a/next/web/src/App/Admin/Settings/Categories/CategoryForm.tsx
+++ b/next/web/src/App/Admin/Settings/Categories/CategoryForm.tsx
@@ -58,7 +58,7 @@ const CategoryMetaOptions: MetaOptionsGroup<CategorySchema>[] = [
         key: 'aiDescription',
         label: 'AI 分类描述',
         type: 'text',
-        predicate: (v) => !v.alias,
+        predicate: (v) => !v.alias || !!v.parentId,
         description:
           '描述的详细与否会影响 AI 帮助用户进行分类的准确度，为空时代表此分类不参与 AI 分类',
       },