ABSTRACT
Although modern ships have been equipped with advanced facilities such as integrated bridge system, automatic navigation device, unmanned engine room, etc, fatal ships accidents still occurred from time to time. Safety has been the key issue which has restricted the development of ships. According to the analysis of ships accidents statistical data from IMO organization, there are three main kinds of reasons which have caused accidents: ① equipment failure in ship itself ② external environment (weather, oceanic condition, etc) ③ human factor.
