diff --git a/Plugins/YLErp.Plugins.GuoLian/DocumentGenerator/TradeConfirmationGenerator.cs b/Plugins/YLErp.Plugins.GuoLian/DocumentGenerator/TradeConfirmationGenerator.cs
index d491bf73..6276da48 100644
--- a/Plugins/YLErp.Plugins.GuoLian/DocumentGenerator/TradeConfirmationGenerator.cs
+++ b/Plugins/YLErp.Plugins.GuoLian/DocumentGenerator/TradeConfirmationGenerator.cs
@@ -350,7 +350,7 @@ namespace YLErp.Plugins.GuoLian.DocumentGenerator
                         var firstInterval = interestMargin.SwapIntervalList.OrderBy(o=>o.Date).First();
                         var lastInterval = interestMargin.SwapIntervalList.OrderBy(o => o.Date).Last();
                         dic["期初观察日"] = firstInterval.Date.ToString("yyyy年M月d日") ?? "";
-                        dic["期末观察日"] = firstInterval.Date.ToString("yyyy年M月d日") ?? "";
+                        dic["期末观察日"] = lastInterval.Date.ToString("yyyy年M月d日") ?? "";
                     }
                 }
                 else