diff --git a/AssetManager.Infrastructure/Services/MarketDataService.cs b/AssetManager.Infrastructure/Services/MarketDataService.cs
index c84b5a0..2a15689 100755
--- a/AssetManager.Infrastructure/Services/MarketDataService.cs
+++ b/AssetManager.Infrastructure/Services/MarketDataService.cs
@@ -9,7 +9,7 @@ namespace AssetManager.Infrastructure.Services;
 /// <summary>
 /// 市场数据服务实现（组合模式）
 /// <para>数据源优先级：</para>
-/// <para>- 实时价格：Yahoo → 腾讯 → Tiingo</para>
+/// <para>- 实时价格：腾讯 → Yahoo → Tiingo（腾讯国内稳定，Yahoo 常限流）</para>
 /// <para>- 历史K线：Yahoo → Tiingo（腾讯历史接口已废弃）</para>
 /// <para>- 加密货币：OKX</para>
 /// </summary>
@@ -154,27 +154,27 @@ public class MarketDataService : IMarketDataService
         }
         else
         {
-            // 股票：优先Yahoo财经，失败降级腾讯财经，最后降级 Tiingo
+            // 股票实时价格：优先腾讯财经（国内稳定），失败降级 Yahoo，最后 Tiingo
             try
             {
-                _logger.LogInformation("[数据源] 尝试 Yahoo 获取 {Symbol}", symbol);
-                response = await _yahooService.GetStockPriceAsync(symbol);
-                source = "Yahoo";
-                _logger.LogInformation("[数据源] Yahoo 成功: {Symbol} = {Price}", symbol, response.Price);
+                _logger.LogInformation("[数据源] 尝试腾讯获取 {Symbol}", symbol);
+                response = await _tencentService.GetStockPriceAsync(symbol);
+                source = "Tencent";
+                _logger.LogInformation("[数据源] 腾讯成功: {Symbol} = {Price}", symbol, response.Price);
             }
             catch (Exception ex)
             {
-                _logger.LogWarning("[数据源] Yahoo 失败: {Symbol}, 错误: {Error}", symbol, ex.Message);
+                _logger.LogWarning("[数据源] 腾讯失败: {Symbol}, 错误: {Error}", symbol, ex.Message);
                 try
                 {
-                    _logger.LogInformation("[数据源] 降级使用腾讯获取 {Symbol}", symbol);
-                    response = await _tencentService.GetStockPriceAsync(symbol);
-                    source = "Tencent";
-                    _logger.LogInformation("[数据源] 腾讯成功: {Symbol} = {Price}", symbol, response.Price);
+                    _logger.LogInformation("[数据源] 降级使用 Yahoo 获取 {Symbol}", symbol);
+                    response = await _yahooService.GetStockPriceAsync(symbol);
+                    source = "Yahoo";
+                    _logger.LogInformation("[数据源] Yahoo 成功: {Symbol} = {Price}", symbol, response.Price);
                 }
-                catch (Exception tencentEx)
+                catch (Exception yahooEx)
                 {
-                    _logger.LogWarning("[数据源] 腾讯失败: {Symbol}, 错误: {Error}", symbol, tencentEx.Message);
+                    _logger.LogWarning("[数据源] Yahoo 失败: {Symbol}, 错误: {Error}", symbol, yahooEx.Message);
                     _logger.LogInformation("[数据源] 最后降级使用 Tiingo 获取 {Symbol}", symbol);
                     response = await _tiingoService.GetStockPriceAsync(symbol);
                     source = "Tiingo";