Advanced techniques in many subjects are adopted synthetically in the Special Missile Equipment and Simulation Training System. Mathematical, physical and network models are built, about one hundred apparatus are manufactured, and the simulation of the whole weapon system and whole launching process is realized. In this paper, the composition, function and the brief scheme of the system are presented briefly. Main technical problems in the design of the large and highly credible hydraulic system, the realization of auto erecting and level adjusting, the missile high precision orientation, and the electromagnetic compatibility design in the large and complex electric system are discussed in detail.