diff --git a/src/components/pages/AssistantPage.tsx b/src/components/pages/AssistantPage.tsx
index 84a4164..5239ae0 100644
--- a/src/components/pages/AssistantPage.tsx
+++ b/src/components/pages/AssistantPage.tsx
@@ -206,7 +206,7 @@ export function AssistantPage() {
     model: "DeepSeek-V3",
     asr: "SenseVoice",
     voice: "晓宁",
-    knowledgeBase: "政务政策知识库",
+    knowledgeBase: "无",
     enableInterrupt: true,
   });
   const [view, setView] = useState<"list" | "choose" | "create" | "placeholder">(
@@ -862,7 +862,7 @@ export function AssistantPage() {
               label="知识库"
               value={form.knowledgeBase}
               onChange={(value) => updateForm("knowledgeBase", value)}
-              options={["政务政策知识库", "售后知识库", "教育课程知识库", "医疗问答知识库"]}
+              options={["无", "政务政策知识库", "售后知识库", "教育课程知识库", "医疗问答知识库"]}
             />
           </SectionCard>