Abstract: The two-dimensional rotation platform is one of the important subassemblies of a certain reliability test equipment. The azimuthal and pitching movement of the moving target can be simulated by two-dimensional rotating of the reflector fixed on the rotation platform. The design of the two-dimensional rotation platform is offered, and its CAD diagram is drawn. The stable design of closedloop servo system was carried out to match its parameters of the mechanical system based on the design of two-dimensional rotation of the reflector. By the characteristic analysis for the movement of the two-dimensional rotation platform, the load torque corresponding with its construction was derived to select the appropriate operating motor and achieve its stable design of the closedloop servo system.