diff --git a/AssetManager.Infrastructure/Services/MarketDataService.cs b/AssetManager.Infrastructure/Services/MarketDataService.cs
index 5231d0c..7e03aa2 100755
--- a/AssetManager.Infrastructure/Services/MarketDataService.cs
+++ b/AssetManager.Infrastructure/Services/MarketDataService.cs
@@ -187,10 +187,7 @@ public class MarketDataService : IMarketDataService
             throw new InvalidOperationException($"获取到的价格无效: {symbol} = {response.Price}");
         }
 
-        // 写入数据库缓存
-        await SavePriceCacheAsync(symbol, assetType, response, source);
-        
-        // 同时写入内存缓存（5分钟有效）
+        // 先写入内存缓存（确保返回给调用者）
         var cacheKey = $"{symbol.ToUpper()}_{assetType.ToUpper()}";
         var expireAt = DateTime.Now.AddMinutes(5);
         _memoryCache[cacheKey] = (new MarketPriceCache
@@ -203,6 +200,19 @@ public class MarketDataService : IMarketDataService
             ExpiredAt = expireAt
         }, expireAt);
         
+        // 写入数据库缓存（Fire-and-Forget，失败不影响主流程）
+        _ = Task.Run(async () =>
+        {
+            try
+            {
+                await SavePriceCacheAsync(symbol, assetType, response, source);
+            }
+            catch (Exception ex)
+            {
+                _logger.LogWarning(ex, "[数据库缓存写入失败] Symbol={Symbol}，忽略（内存缓存已生效）", symbol);
+            }
+        });
+        
         return response;
     }