diff --git a/sf_manufacturing/models/purchase_order.py b/sf_manufacturing/models/purchase_order.py
index d05e6b63..3cc0d877 100644
--- a/sf_manufacturing/models/purchase_order.py
+++ b/sf_manufacturing/models/purchase_order.py
@@ -58,6 +58,15 @@ class PurchaseOrder(models.Model):
             origins = [order.name for order in purchase.picking_ids]
             production_id = self.env['mrp.production'].search([('origin', 'in', origins)])
             purchase.production_count = len(production_id)
+
+    def write(self, vals):
+        for record in self:
+            for line in record.order_line:
+                if line.product_qty <= 0:
+                    raise UserError('请对【产品】中的【数量】进行输入')
+                if line.price_unit <= 0:
+                    raise UserError('请对【产品】中的【单价】进行输入')
+        return super(PurchaseOrder, self).write(vals)
     
 
     origin_sale_id = fields.Many2one('sale.order', string='销售订单号', store=True, compute='_compute_origin_sale_id')
@@ -134,11 +143,4 @@ class PurchaseOrderLine(models.Model):
                 # 如果手动设置了 part_name，使用手动设置的值
                 record.part_name = record.manual_part_name
             if record.manual_part_number:
-                record.part_number = record.manual_part_number
-
-    def write(self, vals):
-        if 'product_qty' in vals and vals.get('product_qty') <= 0:
-            raise UserError('请对【产品】中的【数量】进行输入')
-        if 'price_unit' in vals and vals.get('price_unit') <= 0:
-            raise UserError('请对【产品】中的【单价】进行输入')
-        return super(PurchaseOrderLine, self).write(vals)
\ No newline at end of file
+                record.part_number = record.manual_part_number
\ No newline at end of file