diff --git a/AssetManager.Services/PortfolioService.cs b/AssetManager.Services/PortfolioService.cs
index 50383e1..95f553f 100644
--- a/AssetManager.Services/PortfolioService.cs
+++ b/AssetManager.Services/PortfolioService.cs
@@ -222,11 +222,23 @@ public class PortfolioService : IPortfolioService
                     continue;
                 }
 
-                // 获取实时价格（自动路由数据源）
-                var priceResponse = await _marketDataService.GetPriceAsync(pos.StockCode, pos.AssetType ?? "Stock");
+                // 获取实时价格（自动路由数据源），失败则降级使用成本价
+                decimal currentPrice = pos.AvgPrice;
+                decimal previousClose = pos.AvgPrice;
+                try
+                {
+                    var priceResponse = await _marketDataService.GetPriceAsync(pos.StockCode, pos.AssetType ?? "Stock");
+                    if (priceResponse.Price > 0)
+                    {
+                        currentPrice = priceResponse.Price;
+                        previousClose = priceResponse.PreviousClose > 0 ? priceResponse.PreviousClose : currentPrice;
+                    }
+                }
+                catch (Exception ex)
+                {
+                    _logger.LogWarning(ex, "获取标的 {StockCode} 实时价格失败，使用成本价作为当前价", pos.StockCode);
+                }
 
-                decimal currentPrice = priceResponse.Price;
-                decimal previousClose = priceResponse.PreviousClose;
                 decimal currentPositionValue = pos.Shares * currentPrice;
                 decimal costPositionValue = pos.Shares * pos.AvgPrice;
                 decimal todayProfit = previousClose > 0 ? pos.Shares * (currentPrice - previousClose) : 0;
@@ -289,11 +301,23 @@ public class PortfolioService : IPortfolioService
                 continue;
             }
 
-            // 获取实时价格（自动路由数据源）
-            var priceResponse = await _marketDataService.GetPriceAsync(pos.StockCode, pos.AssetType ?? "Stock");
+            // 获取实时价格（自动路由数据源），失败则降级使用成本价
+            decimal currentPrice = pos.AvgPrice;
+            decimal previousClose = pos.AvgPrice;
+            try
+            {
+                var priceResponse = await _marketDataService.GetPriceAsync(pos.StockCode, pos.AssetType ?? "Stock");
+                if (priceResponse.Price > 0)
+                {
+                    currentPrice = priceResponse.Price;
+                    previousClose = priceResponse.PreviousClose > 0 ? priceResponse.PreviousClose : currentPrice;
+                }
+            }
+            catch (Exception ex)
+            {
+                _logger.LogWarning(ex, "获取标的 {StockCode} 实时价格失败，使用成本价作为当前价", pos.StockCode);
+            }
 
-            decimal currentPrice = priceResponse.Price;
-            decimal previousClose = priceResponse.PreviousClose;
             decimal positionValue = pos.Shares * currentPrice;
             decimal cost = pos.Shares * pos.AvgPrice;
             decimal profit = positionValue - cost;
@@ -551,10 +575,21 @@ public class PortfolioService : IPortfolioService
                 continue;
             }
 
-            // 获取实时价格（自动路由数据源）
-            var priceResponse = _marketDataService.GetPriceAsync(pos.StockCode, pos.AssetType ?? "Stock").GetAwaiter().GetResult();
+            // 获取实时价格（自动路由数据源），失败则降级使用成本价
+            decimal currentPrice = pos.AvgPrice;
+            try
+            {
+                var priceResponse = _marketDataService.GetPriceAsync(pos.StockCode, pos.AssetType ?? "Stock").GetAwaiter().GetResult();
+                if (priceResponse.Price > 0)
+                {
+                    currentPrice = priceResponse.Price;
+                }
+            }
+            catch (Exception ex)
+            {
+                _logger.LogWarning(ex, "获取标的 {StockCode} 实时价格失败，使用成本价计算组合总价值", pos.StockCode);
+            }
 
-            decimal currentPrice = priceResponse.Price;
             totalPortfolioValue += pos.Shares * currentPrice;
         }