diff --git a/components/i/Sign.vue b/components/i/Sign.vue
index 1ec272a5178dcfbc26daf83323a0088f498469aa..67803446816b617b0df8d48608ceb551b78016d7 100644
--- a/components/i/Sign.vue
+++ b/components/i/Sign.vue
@@ -78,7 +78,8 @@ async function handleGetSignUrl (source) {
     const { data } = await useRequest('/v1/user/gitcode/authorize_url')
     url = data.value.data.url
   } else if (source === 'csdn') {
-    // todo
+    const { data } = await useRequest('/v1/user/csdn/authorize_url')
+    url = data.value.data.url
   }
   window.location.href = url
 }