The sudden failure is a transient failure. Its occurrence time is short and it is very difficult to prevent. In order to prevent the sudden failure on aircraft, a monitoring project is presented. It is based on the mechanism analysis of aircraft sudden failure and the evolvement parameters of sudden failure are used Simulation monitoring system is designed by an example of engine surge at the same time. Results shown that this method can effective prevent occurrence of sudden failure by adjustment of the evolvement parameters on aircraft sudden failure.