diff --git a/frontend/pages/stats.js b/frontend/pages/stats.js
index d7c1c67..a322ce3 100644
--- a/frontend/pages/stats.js
+++ b/frontend/pages/stats.js
@@ -42,7 +42,8 @@ export default function Stats() {
   const loadTrendData = useCallback(async () => {
     setTrendLoading(true);
     try {
-      const trend = await getTrendStats(period, getMonthStr(currentMonth));
+      // 趋势统计始终显示全部历史数据，不受月份筛选影响
+      const trend = await getTrendStats(period, null);
       setTrendData(trend);
     } catch (err) {
       console.error(err);
@@ -50,7 +51,7 @@ export default function Stats() {
     } finally {
       setTrendLoading(false);
     }
-  }, [period, currentMonth, showToast]);
+  }, [period, showToast]);
 
   const loadCategoryData = useCallback(async () => {
     try {