The government has impelled Public Construction Occupational Health and Safety Management System for many years. The statistics of this study were sorted out of common flaw types. Meanwhile, in order to promote the construction quality, enhance the output, reduce the cost and the risk of occupational accidents, and increase working efficiency, the goal of this study drscribed and discussed the rellation to the occupational health and safety management system which was supposed to carry out by construction enterprises and the flaw of occupational health and safety. This study collected the common flaws of occupational safety health checks from one of national scientific and technical universities in Yunlin County 2015 to 2017. In order to reduce precarious behavior in the workplace, drawing up the mechanism of occupational safety health management, looking forward to carrying out every policy which clould promote 6S movements in construction. Reduce the occurrence rate of occupational disaster to guarantee the occupational safety and health control system. Key Words: Occupational safety and health, public works, occupational disasters