Abstract: This paper analyzes the current domestic production of small fuel-powered cleaning vehicles with high energy consumption, high noise, serious exhaust pollution, and small pure electric cleaning vehicles with high energy consumption, low efficiency, and low safety; it introduces a Selection of small energy-saving pure electric cleaning vehicle structure, pure electric vehicle second-class chassis, permanent magnet synchronous motor, high-pressure water pump, etc.,lightweight design of car body assembly structure, optimized design of high-pressure cleaning system, innovation of pneumatic system and intelligent control system Design etc.It has realized the performance of zero emission, no pollution, low noise, energy saving, and safe use of small cleaning vehicles.