diff --git a/backend/src/routes/payroll2.routes.ts b/backend/src/routes/payroll2.routes.ts
index 9821d40..78d7956 100644
--- a/backend/src/routes/payroll2.routes.ts
+++ b/backend/src/routes/payroll2.routes.ts
@@ -377,6 +377,16 @@ router.post('/batches', async (req: AuthRequest, res: Response, next: NextFuncti
         try { baseSalary = Number(decrypt(emp.monthlySalary)) || 0 } catch { baseSalary = Number(emp.monthlySalary) || 0 }
       }
 
+      // 统一试用期判定（所有模式适用，SEVERANCE 除外）
+      // 试用期且 probationSalary > 0 → 覆盖 baseSalary 为试用期工资
+      if (type !== 'SEVERANCE' && type !== 'TERMINATION') {
+        const batchMonthEnd = new Date(`${month}-28T23:59:59`)
+        const latestContract = emp.contracts?.[0]
+        if (isInProbation(latestContract, batchMonthEnd) && latestContract?.probationSalary > 0) {
+          baseSalary = latestContract.probationSalary
+        }
+      }
+
       // SEVERANCE 批次：从离职记录读取补偿金作为应发金额，不走工资/社保/个税计算
       let severanceAmount = 0
       let severanceBreakdown: any = null