diff --git a/sf_demand_plan/models/sale_order.py b/sf_demand_plan/models/sale_order.py
index e1168115..27e5c603 100644
--- a/sf_demand_plan/models/sale_order.py
+++ b/sf_demand_plan/models/sale_order.py
@@ -4,6 +4,12 @@ from odoo import models, fields, api, _
 class ReSaleOrder(models.Model):
     _inherit = 'sale.order'
 
+    mrp_production_ids = fields.Many2many(
+        'mrp.production',
+        compute='_compute_mrp_production_ids',
+        string='与此销售订单相关联的制造订单',
+        groups='mrp.group_mrp_user', store=True)
+
     def sale_order_create_line(self, product, item):
         ret = super(ReSaleOrder, self).sale_order_create_line(product, item)
         vals = {