diff --git a/app/trades/page.tsx b/app/trades/page.tsx
index 1d1f35c..8bc49f0 100644
--- a/app/trades/page.tsx
+++ b/app/trades/page.tsx
@@ -30,6 +30,7 @@ const statusVariant: Record<string, "default" | "secondary" | "destructive"> = {
 export default async function TradesPage() {
   const [rows, stats] = await Promise.all([getTrades(), getStats()]);
   const statsMap = Object.fromEntries(stats.map((s: any[]) => [s[0], s[1]]));
+  const totalBetAmount = rows.reduce((sum: number, r: any[]) => sum + (Number(r[4]) || 0), 0);
   const totalPnl = rows.reduce((sum: number, r: any[]) => sum + (r[7] || 0), 0);
   const expectedTotalProfit = rows
     .filter((r: any[]) => r[6] === "open")
@@ -42,7 +43,13 @@ export default async function TradesPage() {
         <p className="text-muted-foreground text-sm mt-1">信号验证 — 模拟下注记录（每注 $1）</p>
       </div>
 
-      <div className="grid grid-cols-2 md:grid-cols-5 gap-3">
+      <div className="grid grid-cols-2 md:grid-cols-6 gap-3">
+        <Card>
+          <CardContent className="pt-4 pb-4">
+            <div className="text-xs text-muted-foreground">总下注金额</div>
+            <div className="text-2xl font-bold mt-1">${totalBetAmount.toFixed(2)}</div>
+          </CardContent>
+        </Card>
         <Card>
           <CardContent className="pt-4 pb-4">
             <div className="text-xs text-muted-foreground">总注单</div>