diff --git a/sf_quality/models/custom_quality.py b/sf_quality/models/custom_quality.py
index 9fdb2920..0049a99a 100644
--- a/sf_quality/models/custom_quality.py
+++ b/sf_quality/models/custom_quality.py
@@ -26,4 +26,12 @@ class SfQualityPoint(models.Model):
         if self.test_type_id.name == '出厂检验报告':
             if self.measure_on != 'product':
                 raise ValidationError('出厂检验报告的测量对象必须为产品')
+            
+    @api.onchange('measure_on')
+    def _onchange_measure_on(self):
+        """
+        如果measure_on的值变了，则清空test_type_id的值
+        """
+        if self.measure_on != 'product':
+            self.test_type_id = False