Abstract:In today's increasingly fierce market competition, product quality is becoming more and more important for a company, especially for manufacturing companies, where good product quality is the foundation of their survival and development. What theories and methods are available for manufacturing companies to use when optimizing product quality? Based on this, this article starts with the analysis of the related concepts of product quality optimization in manufacturing companies, and reviews the research status of theories and methods of product quality optimization in manufacturing companies, hoping to provide references for manufacturing companies in product quality optimization research.