Abstract:Missile testing and launching system is an important part of missile ground system, it inform us the technical conditions of the missile weapon system, provide the criterions of command and decision for the weapon system, so there is need to optimize the missile testing and launching system. For improving the performance of the system, some typical faults are studied in the paper. Faults are caused by disable component, interference and incorrect equipment grounding are analyzed and some tests of validation are provided. In consideration of the mechanism of every kind of fault, the paper provides the reasons, improvement and solution methods. This paper presents the analysis method for the crucial problems of the testing and launching system, provide the optimize opinions for system design later on, and improve the performance of the system effectively.