In order to satisfy the high-accuracy of synchronous revolution between scanning subassembly and image rotation compensation subassembly,a method of wire rope gearing is put forward,which is driven by double electric motors and controlled by independent position loop and speed loop.The structure and control method are introduced in detail.The transmission stiffness of steel wire rope is analyzed.The accuracy of wire rope gearing is tested by means of experiment.The influences of pretightening force and load force on accuracy are analyzed.The experimental result shows that the synchronous error is 0.03°,and the steady speed error is 1.5% when the rotary speed is 5°/s.The feasibility of wire rope gearing is proved by the experimental results,and a new method of wire rope gearing applied in aerial optical remote sensor is presented.