diff --git a/sf_manufacturing/models/sf_production_common.py b/sf_manufacturing/models/sf_production_common.py
index 3c4ad8cf..8db07b53 100644
--- a/sf_manufacturing/models/sf_production_common.py
+++ b/sf_manufacturing/models/sf_production_common.py
@@ -9,7 +9,7 @@ class SfProductionProcessParameter(models.Model):
     _inherit = 'sf.production.process.parameter'
     service_products = fields.Many2one(
         'product.template',
-        string='外协服务产品',compute='_compute_service_products',inverse='_inverse_service_products',
+        string='外协服务产品',compute='_compute_service_products',
         store=True
     )
     outsourced_service_products = fields.One2many(
@@ -25,15 +25,8 @@ class SfProductionProcessParameter(models.Model):
     def _compute_service_products(self):
         for record in self:
             # 假设取第一条作为主明细
-            record.service_products = record.outsourced_service_products.ids if record.outsourced_service_products else False
+            record.service_products = record.outsourced_service_products[0].id if record.outsourced_service_products else False
 
-    def _inverse_service_products(self):
-        for record in self:
-            if record.service_products:
-                # 确保关联关系正确
-                record.outsourced_service_products = record.service_products.ids if record.service_products else False
-            else:
-                record.outsourced_service_products = False
     def name_get(self):
         result = []
         for record in self: