diff --git a/sf_demand_plan/models/sf_production_demand_plan.py b/sf_demand_plan/models/sf_production_demand_plan.py
index 12214bff..d07e4936 100644
--- a/sf_demand_plan/models/sf_production_demand_plan.py
+++ b/sf_demand_plan/models/sf_production_demand_plan.py
@@ -403,29 +403,30 @@ class SfProductionDemandPlan(models.Model):
                     outsourcing_purchase_request.extend(pr_ids.ids)
                 if record.supply_method == 'outsourcing' and not record.sale_order_line_id.is_incoming_material:
                     bom_line_ids = record.product_id.bom_ids.bom_line_ids
-                    # BOM_数量
-                    total_product_qty = sum(line.product_qty for line in bom_line_ids)
-                    bom_product_ids = bom_line_ids.mapped('product_id')
-                    product_purchase_orders = self.env['purchase.order'].sudo().search([
-                        ('state', 'in', ('purchase', 'done')),
-                        ('order_line.product_id', 'in', bom_product_ids.ids)
-                    ])
-                    # 购订单_数量
-                    total_outsourcing_purchase_quantity = sum(
-                        sum(
-                            order.order_line.filtered(
-                                lambda line: line.product_id in bom_product_ids
-                            ).mapped('product_qty')
+                    if bom_line_ids:
+                        # BOM_数量
+                        total_product_qty = sum(line.product_qty for line in bom_line_ids)
+                        bom_product_ids = bom_line_ids.mapped('product_id')
+                        product_purchase_orders = self.env['purchase.order'].sudo().search([
+                            ('state', 'in', ('purchase', 'done')),
+                            ('order_line.product_id', 'in', bom_product_ids.ids)
+                        ])
+                        # 购订单_数量
+                        total_outsourcing_purchase_quantity = sum(
+                            sum(
+                                order.order_line.filtered(
+                                    lambda line: line.product_id in bom_product_ids
+                                ).mapped('product_qty')
+                            )
+                            for order in product_purchase_orders
                         )
-                        for order in product_purchase_orders
-                    )
-                    quantity = total_outsourcing_purchase_quantity / total_product_qty
-                    if float_compare(quantity, record.product_uom_qty,
-                                     precision_rounding=record.product_id.uom_id.rounding) == -1:
-                        purchase_request = self.env['purchase.request'].sudo().search(
-                            [('line_ids.product_id', 'in', bom_product_ids.ids),
-                             ('line_ids.purchase_state', 'not in', ('purchase', 'done')), ('state', '!=', 'done')])
-                        outsourcing_purchase_request.extend(purchase_request.ids)
+                        quantity = total_outsourcing_purchase_quantity / total_product_qty
+                        if float_compare(quantity, record.product_uom_qty,
+                                         precision_rounding=record.product_id.uom_id.rounding) == -1:
+                            purchase_request = self.env['purchase.request'].sudo().search(
+                                [('line_ids.product_id', 'in', bom_product_ids.ids),
+                                 ('line_ids.purchase_state', 'not in', ('purchase', 'done')), ('state', '!=', 'done')])
+                            outsourcing_purchase_request.extend(purchase_request.ids)
             record.outsourcing_purchase_request = json.dumps(outsourcing_purchase_request)
             if outsourcing_purchase_request:
                 record.hide_action_purchase_orders = True