diff --git a/sf_quality/models/quality.py b/sf_quality/models/quality.py
index b2706b75..950c4436 100644
--- a/sf_quality/models/quality.py
+++ b/sf_quality/models/quality.py
@@ -223,7 +223,7 @@ class QualityCheck(models.Model):
     def preview_doc(self):
         """预览出厂检验报告"""
         self.ensure_one()
-        picking_qty = sum(self.picking_id.move_ids.mapped('product_uom_qty'))
+        picking_qty = sum(self.picking_id.move_ids.filtered(lambda m: m.product_id == self.product_id).mapped('product_uom_qty'))
         if not self._check_total_qty(picking_qty) and self.quality_state in ['waiting', 'none']:
             return {
                 'type': 'ir.actions.client',