diff --git a/sf_manufacturing/models/mrp_workorder.py b/sf_manufacturing/models/mrp_workorder.py
index 4d56312a..4180bcce 100644
--- a/sf_manufacturing/models/mrp_workorder.py
+++ b/sf_manufacturing/models/mrp_workorder.py
@@ -443,21 +443,11 @@ class ResMrpWorkOrder(models.Model):
     @api.depends('state', 'production_id.name')
     def _compute_surface_technics_purchase_ids(self):
         for order in self:
-            if order.routing_type == '表面工艺' and order.state not in ['cancel']:
-                # domain = [('group_id', '=', self.production_id.procurement_group_id.id),
-                #           ('purchase_type', '=', 'consignment'), ('state', '!=', 'cancel')]
-                domain = [('purchase_type', '=', 'consignment'),
-                          ('origin', 'like', '%' + self.production_id.name + '%'),
-                          ('state', '!=', 'cancel')]
-                purchase = self.env['purchase.order'].search(domain)
-                order.surface_technics_purchase_count = 0
-                if not purchase:
-                    order.surface_technics_purchase_count = 0
-                for po in purchase:
-                    if any(
-                            line.product_id and line.product_id.server_product_process_parameters_id == order.surface_technics_parameters_id
-                            for line in po.order_line):
-                        order.surface_technics_purchase_count = 1
+            pr_ids = self.env['purchase.request'].sudo().search(
+                [('origin', 'like', self.production_id.name), ('is_subcontract', '=', 'True'),
+                 ('state', '!=', 'rejected')])
+            if pr_ids.purchase_count:
+                order.surface_technics_purchase_count = pr_ids.purchase_count
             else:
                 order.surface_technics_purchase_count = 0
 
@@ -502,17 +492,19 @@ class ResMrpWorkOrder(models.Model):
         # if technology_design.is_auto is False:
         #     domain = [('origin', '=', self.production_id.name)]
         # else:
-
-        purchase_orders_id = self._get_surface_technics_purchase_ids()
-        result = {
-            "type": "ir.actions.act_window",
-            "res_model": "purchase.order",
-            "res_id": purchase_orders_id.id,
-            # "domain": [['id', 'in', self.purchase_id]],
-            "name": _("Purchase Orders"),
-            'view_mode': 'form',
-        }
-        return result
+        pr_ids = self.env['purchase.request'].sudo().search(
+            [('origin', 'like', self.production_id.name), ('is_subcontract', '=', 'True'),
+             ('state', '!=', 'rejected')])
+        # purchase_orders_id = self._get_surface_technics_purchase_ids()
+        # result = {
+        #     "type": "ir.actions.act_window",
+        #     "res_model": "purchase.order",
+        #     "res_id": purchase_orders_id.id,
+        #     # "domain": [['id', 'in', self.purchase_id]],
+        #     "name": _("Purchase Orders"),
+        #     'view_mode': 'form',
+        # }
+        return pr_ids.action_view_purchase_order()
 
     def _get_surface_technics_purchase_ids(self):
         domain = [('origin', 'like', '%' + self.production_id.name + '%'), ('purchase_type', '=', 'consignment'),