diff --git a/sf_manufacturing/models/mrp_workorder.py b/sf_manufacturing/models/mrp_workorder.py
index ef2c654b..d121bae8 100644
--- a/sf_manufacturing/models/mrp_workorder.py
+++ b/sf_manufacturing/models/mrp_workorder.py
@@ -1456,6 +1456,9 @@ class ResMrpWorkOrder(models.Model):
 
     # 解绑托盘
     def unbind_tray(self):
+        for item in self:
+            self.env['stock.lot'].sudo().search([('rfid', '=', item.rfid_code)]).write(
+                {'tool_material_status': '可用'})
         self.production_id.workorder_ids.write({
             'rfid_code': False,
             'tray_serial_number': False,
@@ -1464,9 +1467,6 @@ class ResMrpWorkOrder(models.Model):
             'tray_type_id': False,
             'tray_model_id': False,
             'is_trayed': False})
-        for item in self:
-            self.env['stock.lot'].sudo().search([('rfid', '=', item.rfid_code)]).write({
-                'tool_material_status': '可用'})
 
     # 将FTP的检测报告文件下载到临时目录
     def download_reportfile_tmp(self, workorder, reportpath):