For real-time simulation of the complicated display and control system of aircrafts in a simple and quick way，a design scheme of distributed display and control simulation system based on Client/Server structure is presented with its functional features. Through using C/S structure, the system is divided into one server and multi clients，between which communication interfaces are established. And multithreading technology is applied to the division of the system software into modularized threads, to improve the real-time performance of system. The simulation results show that both display rate and communication rate meet the real-timere quirements, which lays the foundation for the simulation of a more complex display and control system.