Abstract Cars as modern transportation has been widely accepted, individual have the number of private cars in every year by rapid speed increase. However, with the development of science and technology, automobile manufacturing continued to fierce competition is. How to grasp the advanced automobile manufacturing technology, research and public satisfaction car, granting numerous car manufacturers become urgent Steering test automobile redirector of various performance indicators testing, eliminate the original insufficient, introduces the test-bed over-bed test-bed advantages and overall scheme design. In the design process involved, including mechanical parts of the test-bed installed card and transmission; Simulation of damping parts work environment redirector and hydraulic booster parts; Control of the test bench work properly controlling part. Includes a lot of hardware and software design. Keywords:Diverter Test platform Electrically operated