In this research, we investigate the countermeasure of Product Liability through existing research or books for reference about PL and ISO 9001 : 2000 quality management system. And we analyze relation between PL system and ISO 9001 : 2000 Quality Management System after compare ISO 9001 : 2000 and ISO 9000 : 1994. base on this analysis, we integrate the Quality Management System of company and an important factor of PL system in accordance with the product liability law. So we present a general improvable scheme of ISO 9001 quality management system that reduces overlap of quality business and utilize efficiently.