diff --git a/SimpleAdmin.Application/Services/Onboarding/ContractDocument/OnboardingContractDocumentService.cs b/SimpleAdmin.Application/Services/Onboarding/ContractDocument/OnboardingContractDocumentService.cs
index 2a1b052..66fbf6c 100644
--- a/SimpleAdmin.Application/Services/Onboarding/ContractDocument/OnboardingContractDocumentService.cs
+++ b/SimpleAdmin.Application/Services/Onboarding/ContractDocument/OnboardingContractDocumentService.cs
@@ -376,8 +376,19 @@ public class OnboardingContractDocumentService : IOnboardingContractDocumentServ
                 item => item.VariableValue ?? string.Empty,
                 StringComparer.OrdinalIgnoreCase));
         var generatedAt = DateTime.Now;
-        // 在文件名中加入生成批次，避免手机系统把同名的新合同误认为历史下载文件。
-        var name = $"{task.TaskNo}_{contract.ContractName}_{generatedAt:yyyyMMddHHmmssfff}.docx";
+        var employeeInfo = await _db.Queryable<ObTaskEmployeeInfo>()
+            .FirstAsync(item => item.TaskId == task.Id);
+        var employeeName = string.IsNullOrWhiteSpace(employeeInfo?.EmployeeName)
+            ? "新员工"
+            : employeeInfo.EmployeeName.Trim();
+        var docType = string.IsNullOrWhiteSpace(contract.ContractType)
+            ? (string.IsNullOrWhiteSpace(contract.ContractName) ? "签署材料" : contract.ContractName.Trim())
+            : contract.ContractType.Trim();
+        var invalidChars = global::System.IO.Path.GetInvalidFileNameChars();
+        var safeEmployeeName = new string(employeeName.Select(character => invalidChars.Contains(character) ? '_' : character).ToArray());
+        var safeDocType = new string(docType.Select(character => invalidChars.Contains(character) ? '_' : character).ToArray());
+        // 按照规范：编号_员工姓名_文档类型.docx
+        var name = $"{task.TaskNo}_{safeEmployeeName}_{safeDocType}.docx";
         var fileId = await _fileService.StoreGeneratedFile(
             SysDictConst.FILE_ENGINE_ALIYUN_OSS,
             name,