Abstract.：In information society, enterprise crises breakout continuously, the super-competitive market situation, the deepening theoretical research on enterprise crisis management and its practice applications, enhanced status and functions of enterprise information management and inherent lifecycle characteristics of crises, promote the emergence and development of crisis management. This thesis probed ECIM based on lifecycle with system analysis (SA). Please keep this in mind when designing your figures and tables etc. Present crisis warning index system of enterprise crisis, inquiry into index sign. Propose crisis warning information system management workflow model based on KD and CBR. Analyze the reason of enterprise crisis early warning and preliminary control out of order, put forward some prevention strategy.