With the further development of logistics transportation, combined with the strengthening of national environmental protection policy and the national environmental protection consciousness enhancement, the user demand for electric vehicles is more and more intense, will make electric drive in green energy storage and the rapid growth of the vehicle. High-level order pickers are essential to the Order picking stereoscopic warehouse vehicle, this article will be to High have taken comprehensive research on the stability of the vehicle, this paper proposes a high -level order pickers focus self-balancing technology, further improve the stability of the vehicle, ensure the maneuverability of vehicle at the same time, to reduce the labor intensity of workers, improve the working efficiency is of great significance.