diff --git a/IRaCIS.Core.Application/Helper/FileDocProcess/ExcelExportHelper.cs b/IRaCIS.Core.Application/Helper/FileDocProcess/ExcelExportHelper.cs
index b94592f59..879db8897 100644
--- a/IRaCIS.Core.Application/Helper/FileDocProcess/ExcelExportHelper.cs
+++ b/IRaCIS.Core.Application/Helper/FileDocProcess/ExcelExportHelper.cs
@@ -421,7 +421,7 @@ public static class ExcelExportHelper
             }
 
             //中文替换项目术语
-            if (data?.TrialObjectNameList.Count > 0)
+            if (data.TrialObjectNameList?.Count > 0)
             {
                 var replaceObjectList = data.TrialObjectNameList;