Abstract
This paper investigates why the manufacturing departments have come to the decentralized autonomous organization in Toyota Motor Corporation. In this study, I could bring out two facts. First, it was hoped that the manufacturing departments in Toyota maintained production to meet the market demand and raised productivity without new employment after 1950 crisis. Second,to meet the company’s expectations, Taiichi Ohno and associates structured the Toyota Production System. As a result, manufacturing departments in Toyota have come to the decentralized autonomous organization.