diff --git a/SimpleAdmin.Application/Services/Onboarding/ContractDocument/IOnboardingContractDocumentService.cs b/SimpleAdmin.Application/Services/Onboarding/ContractDocument/IOnboardingContractDocumentService.cs
index 3965a58..f283735 100644
--- a/SimpleAdmin.Application/Services/Onboarding/ContractDocument/IOnboardingContractDocumentService.cs
+++ b/SimpleAdmin.Application/Services/Onboarding/ContractDocument/IOnboardingContractDocumentService.cs
@@ -21,4 +21,9 @@ public interface IOnboardingContractDocumentService : ITransient
     /// 根据已审核通过的任务合同生成并保存 DOCX 文件。
     /// </summary>
     Task<long> Generate(OnboardingGenerateContractInput input);
+
+    /// <summary>
+    /// 员工公开入口已验证一次性任务链接后，生成该链接所属的合同文件。
+    /// </summary>
+    Task<long> GenerateForPublicAccess(long taskContractId, long taskId);
 }
diff --git a/SimpleAdmin.Application/Services/Onboarding/ContractDocument/OnboardingContractDocumentService.cs b/SimpleAdmin.Application/Services/Onboarding/ContractDocument/OnboardingContractDocumentService.cs
index 220a35b..2a1b052 100644
--- a/SimpleAdmin.Application/Services/Onboarding/ContractDocument/OnboardingContractDocumentService.cs
+++ b/SimpleAdmin.Application/Services/Onboarding/ContractDocument/OnboardingContractDocumentService.cs
@@ -306,6 +306,27 @@ public class OnboardingContractDocumentService : IOnboardingContractDocumentServ
             task.CreateUserId,
             OnboardingPermissionCodes.TaskManageAll,
             "入职任务");
+
+        return await GenerateCore(contract, task);
+    }
+
+    /// <inheritdoc />
+    public async Task<long> GenerateForPublicAccess(long taskContractId, long taskId)
+    {
+        var contract = await _db.Queryable<ObTaskContract>()
+            .FirstAsync(item => item.Id == taskContractId && item.TaskId == taskId)
+            ?? throw Oops.Bah("合同不存在");
+        var task = await _db.Queryable<ObOnboardingTask>().InSingleAsync(taskId)
+            ?? throw Oops.Bah("入职任务不存在");
+
+        return await GenerateCore(contract, task);
+    }
+
+    /// <summary>
+    /// 执行已经完成调用方权限或公开链接归属校验的合同生成逻辑。
+    /// </summary>
+    private async Task<long> GenerateCore(ObTaskContract contract, ObOnboardingTask task)
+    {
         var statusAllowsGeneration = task.TaskStatus == OnboardingTaskStatus.PendingFill
                                      || task.TaskStatus == OnboardingTaskStatus.Rejected
                                      || task.TaskStatus == OnboardingTaskStatus.Reviewing
@@ -340,7 +361,7 @@ public class OnboardingContractDocumentService : IOnboardingContractDocumentServ
             .FirstOrDefault(definition => string.IsNullOrWhiteSpace(
                 variables.FirstOrDefault(variable => variable.VariableCode == definition.VariableCode)?.VariableValue));
         if (missing != null)
-            throw Oops.Bah($"合同变量“{missing.VariableName}”尚未填写，暂时不能预览合同");
+            throw Oops.Bah($"合同“{contract.ContractName}”的变量“{missing.VariableName}”尚未填写，暂时不能预览合同");
 
         var sourceResult = await _fileService.Download(new BaseIdInput { Id = source.Id })
             ?? throw Oops.Bah("无法读取合同源文件");
diff --git a/SimpleAdmin.Application/Services/Onboarding/PublicTask/OnboardingPublicTaskService.cs b/SimpleAdmin.Application/Services/Onboarding/PublicTask/OnboardingPublicTaskService.cs
index db196b4..82e7d1f 100644
--- a/SimpleAdmin.Application/Services/Onboarding/PublicTask/OnboardingPublicTaskService.cs
+++ b/SimpleAdmin.Application/Services/Onboarding/PublicTask/OnboardingPublicTaskService.cs
@@ -200,10 +200,9 @@ public class OnboardingPublicTaskService : IOnboardingPublicTaskService
         }
 
         await _snapshotService.Build(link.TaskId);
-        var fileId = await _contractDocumentService.Generate(new OnboardingGenerateContractInput
-        {
-            TaskContractId = contract.Id
-        });
+        var fileId = await _contractDocumentService.GenerateForPublicAccess(
+            contract.Id,
+            link.TaskId);
 
         var generatedAt = await _db.Queryable<ObTaskContract>()
             .Where(item => item.Id == contract.Id)