diff --git a/backend-node/src/controllers/popProductionController.ts b/backend-node/src/controllers/popProductionController.ts
index 7a9e6394..7dac3ad2 100644
--- a/backend-node/src/controllers/popProductionController.ts
+++ b/backend-node/src/controllers/popProductionController.ts
@@ -1757,31 +1757,32 @@ export const acceptProcess = async (req: AuthenticatedRequest, res: Response) =>
       });
     }
 
-    // batch_id 생성 또는 전달받은 값 사용
-    // 프론트에서 batch_id를 전달하면 이어받고, 없으면 새로 생성
+    // batch_id: 컬럼이 있으면 포함, 없으면 제외
     const batchId = req.body.batch_id || `BATCH-${Date.now()}-${Math.random().toString(36).slice(2, 6)}`;
+    const hasBatchCol = _batchMigrationDone;
 
-    // 분할 행 INSERT (원본 행에서 공정 정보 복사 + batch_id)
-    await ensureBatchIdColumn();
-    const result = await client.query(
-      `INSERT INTO work_order_process (
-        id, wo_id, seq_no, process_code, process_name, is_required, is_fixed_order,
+    // 분할 행 INSERT (batch_id는 컬럼 존재 시에만)
+    const insertCols = `id, wo_id, seq_no, process_code, process_name, is_required, is_fixed_order,
         standard_time, equipment_code, routing_detail_id,
         status, input_qty, good_qty, defect_qty, total_production_qty,
         result_status, accepted_by, accepted_at, started_at,
-        parent_process_id, company_code, writer, batch_id
-      ) VALUES (
-        gen_random_uuid()::text, $1, $2, $3, $4, $5, $6, $7, $8, $9,
+        parent_process_id, company_code, writer${hasBatchCol ? ", batch_id" : ""}`;
+    const insertVals = `gen_random_uuid()::text, $1, $2, $3, $4, $5, $6, $7, $8, $9,
         'in_progress', $10, '0', '0', '0',
         'draft', $11, NOW()::text, NOW()::text,
-        $12, $13, $11, $14
-      ) RETURNING id, input_qty, status, process_name, result_status, accepted_by, batch_id`,
-      [
-        row.wo_id, row.seq_no, row.process_code, row.process_name,
-        row.is_required, row.is_fixed_order, row.standard_time,
-        row.equipment_code, row.routing_detail_id,
-        String(qty), userId, masterId, companyCode, batchId,
-      ]
+        $12, $13, $11${hasBatchCol ? ", $14" : ""}`;
+    const insertParams = [
+      row.wo_id, row.seq_no, row.process_code, row.process_name,
+      row.is_required, row.is_fixed_order, row.standard_time,
+      row.equipment_code, row.routing_detail_id,
+      String(qty), userId, masterId, companyCode,
+      ...(hasBatchCol ? [batchId] : []),
+    ];
+
+    const result = await client.query(
+      `INSERT INTO work_order_process (${insertCols}) VALUES (${insertVals})
+       RETURNING id, input_qty, status, process_name, result_status, accepted_by`,
+      insertParams
     );
 
     // 분할 행에 체크리스트 복사