diff --git a/SimpleAdmin.Application/Services/Onboarding/ContractSnapshot/OnboardingContractSnapshotService.cs b/SimpleAdmin.Application/Services/Onboarding/ContractSnapshot/OnboardingContractSnapshotService.cs
index 6045625..bc4ea26 100644
--- a/SimpleAdmin.Application/Services/Onboarding/ContractSnapshot/OnboardingContractSnapshotService.cs
+++ b/SimpleAdmin.Application/Services/Onboarding/ContractSnapshot/OnboardingContractSnapshotService.cs
@@ -232,7 +232,8 @@ public class OnboardingContractSnapshotService : IOnboardingContractSnapshotServ
     {
         return sourceField.ToUpperInvariant() switch
         {
-            "COMPANYCODE" or "COMPANY_CODE" => nameof(ObCompany.CompanyCode),
+            // 内置合同变量 CompanyCode 表示统一社会信用代码，保留旧 DOCX 占位符兼容。
+            "COMPANYCODE" or "COMPANY_CODE" => nameof(ObCompany.UnifiedSocialCreditCode),
             "COMPANYNAME" or "COMPANY_NAME" => nameof(ObCompany.CompanyName),
             "LEGALNAME" or "LEGAL_NAME" or "COMPANYLEGALNAME" => nameof(ObCompany.LegalName),
             "UNIFIEDSOCIALCREDITCODE" or "UNIFIED_SOCIAL_CREDIT_CODE" => nameof(ObCompany.UnifiedSocialCreditCode),