In this article,the adoption of gear/worm transferring,synchronous strip/gear installing method and perpendicular cross guiding rail which applied in the large aperture interferometer are described. By use of the method could be improved the system's stability and adjusting accuracy as well as the quality of the standard mirror face shape. The design principle and basic formulas of driving devices are introduced theoretically,and by experiments the devices' influence upon the stability of system is proved.