The testing and launching control system of missile which doesn't have the abilities of fault setting and the evaluation of training effect, is inconvenient in the function extension and circuit maintenance. To resolve these outstanding problems, a new method to design and establish the physical model of the circuit of testing and launching control system by use of the object-oriented technology is presented, which is by designing the properties, methods and events of the components, circuit and the single machine, and the testing simulation training system of a certain missile control system according to it is developed. The general design idea of this system and the digital analysis of the electric circuit, gas circuit and fluid circuit of the system were given, the process and methods of modeling were emphatically elaborated, such as the systempsilas schematic diagram of computer reconstruction, the system logical reasoning and so on. Practice has proved that this modeling method is feasible, which provides another new feasible approach for the realization of the test stimulation training system of missile.