diff --git a/UnitTestProject/Modules/TradeModule/DocGenerateModule/GuolianContractNoGeneratorTest.cs b/UnitTestProject/Modules/TradeModule/DocGenerateModule/GuolianContractNoGeneratorTest.cs
index 14580fd3..28e41c9d 100644
--- a/UnitTestProject/Modules/TradeModule/DocGenerateModule/GuolianContractNoGeneratorTest.cs
+++ b/UnitTestProject/Modules/TradeModule/DocGenerateModule/GuolianContractNoGeneratorTest.cs
@@ -33,6 +33,19 @@ namespace YLErp.UnitTestProject.Modules.TradeModule.DocGenerateModule
                 blankTrade, CompanyEnum.国泰君安));
         }
 
+        [DataTestMethod]
+        [DataRow("GLMS-st0728-20260729-FICC-Q-210210IB", true, "GLMS-ST0728-20260729-FICC-Q-210210IB")]
+        [DataRow("GLMS-st0728-20260729-FICC-Q-210210IB", false, "GLMS-st0728-20260729-FICC-Q-210210IB")]
+        public void NormalizeTradeNumberCase_AppliesUpperTradeNumberConfiguration(
+            string tradeNumber,
+            bool upperTradeNumber,
+            string expected)
+        {
+            var actual = GuolianContractNoGenerator.NormalizeTradeNumberCase(tradeNumber, upperTradeNumber);
+
+            Assert.AreEqual(expected, actual);
+        }
+
         [TestMethod]
         public void BuildTradeNumber_ClientTrade_UsesNumericSequenceAndSanitizesUnderlyingCode()
         {
diff --git a/YLErpDAL/Modules/TradeModule/DocGenerateModule/GuolianContractNoGenerator.cs b/YLErpDAL/Modules/TradeModule/DocGenerateModule/GuolianContractNoGenerator.cs
index b1d666a0..6a26328a 100644
--- a/YLErpDAL/Modules/TradeModule/DocGenerateModule/GuolianContractNoGenerator.cs
+++ b/YLErpDAL/Modules/TradeModule/DocGenerateModule/GuolianContractNoGenerator.cs
@@ -62,10 +62,19 @@ namespace YLErp.Modules.TradeModule.DocGenerateModule
                 throw new ServiceException("对手方代码缩写缺失，请联系运营组同事维护");
             }
 
-            trade.TradeNumber = Generate(dbContext, trade, clientCode);
+            trade.TradeNumber = NormalizeTradeNumberCase(
+                Generate(dbContext, trade, clientCode),
+                PS.Config.ErpElement.UpperTradeNumber);
             return true;
         }
 
+        public static string NormalizeTradeNumberCase(string tradeNumber, bool upperTradeNumber)
+        {
+            return upperTradeNumber && !string.IsNullOrEmpty(tradeNumber)
+                ? tradeNumber.ToUpperInvariant()
+                : tradeNumber;
+        }
+
         /// <summary>
         /// 按国联确认书编号规则拼装编号（纯函数，不依赖数据库，便于单测）。
         /// 格式：GLMS-{clientCode}-{成交日期(yyyyMMdd)}-FICC-{序号}-{标的代码(去点)}