diff --git a/backend/routes/stock.py b/backend/routes/stock.py
index 470954b..e427948 100644
--- a/backend/routes/stock.py
+++ b/backend/routes/stock.py
@@ -201,12 +201,20 @@ async def stock_fund_flow(
     if not data:
         raise HTTPException(status_code=404, detail="未获取到资金流向数据")
 
-    # 从腾讯 K 线补充成交额/收盘价/涨跌幅
+    # 从腾讯 K 线补充收盘价/涨跌幅
     kline_map = await tencent.fetch_kline_map(code, days)
+    # 从东方财富 K 线补充成交额（腾讯 fqkline 不含成交额字段）
+    em_klines = await eastmoney.fetch_kline_history(code, days)
+    em_kline_map = {}
+    if em_klines:
+        for k in em_klines:
+            if k.get("turnover"):
+                em_kline_map[k["date"]] = k["turnover"]
     for d in data:
         ki = kline_map.get(d["date"], {})
         if d.get("turnover", 0) == 0:
-            d["turnover"] = ki.get("turnover", 0)
+            # 优先从东方财富 kline 拿成交额，其次腾讯
+            d["turnover"] = em_kline_map.get(d["date"], ki.get("turnover", 0))
         if d.get("closePrice", 0) == 0:
             d["closePrice"] = ki.get("close", 0)
         if d.get("changePercent", 0) == 0: