海因里希的事故致因理论认为,事故的发生是一连串事件按一定顺序互为因果、依次发生的结果。而人的不安全行为、物的不安全状态是导致事故的直接原因。他认为安全管理就是利用计划、组织、指挥、协调、控制等管理机能,控制来自自然的、机械的、物质的不安全因素和人的不安全行为,即事故发生的致因因素,避免发生事故。 Heinrich’s accident theory argues that the occurrence of an accident is a sequence of causal and sequential occurrences of events in a certain order. The unsafe behavior of people, the insecurity of the material is the direct cause of the accident. He believes that safety management is the use of planning, organization, command, coordination, control and other management functions, control from natural, mechanical, material insecurity and human unsafe behavior, that is, the cause of the accident, to avoid accidents .