Abstract: Organizational management factors of major crisis events are discussed in depth. The following results re obtained: the rules of generation and evolution of major crisis events can be found; the major crisis events are the result of the occurrence of crisis inducement and the failure of system of defense; the organizational management factors will influence the failure of system of defense in depth. The following theory tendency is put forward: firstly, the organizational management factors should be introduced into the analysis of crisis causation; secondly, the synergistic effect between internal factor and external factors of a organization should be stressed; thirdly, the key organizational factor should be discovered so as to utilize resources adequately; etc. At last the future research directions are discovered from three aspects which are identification, influence analysis and controlling strategy in case of major crisis events.