diff --git a/frontend/src/pages/YichensBoard.jsx b/frontend/src/pages/YichensBoard.jsx
index f9a74bb..12a7631 100644
--- a/frontend/src/pages/YichensBoard.jsx
+++ b/frontend/src/pages/YichensBoard.jsx
@@ -96,6 +96,10 @@ export default function YichensBoard() {
             return kw.some(k => text.includes(k))
           })
         }
+        // 筛选后更新totalPosts
+        if (numberFilter) {
+          setTotalPosts(data.length)
+        }
       }
       // 确保data是数组
       if (!Array.isArray(data)) {