The Passenger Stair is a special mobile equipment used for passengers to board and disembark from the aircraft. It is divided into two types: self-made chassis and commercial chassis. For commercial chassis, different brands can also be selected according to customer needs. It adopts intelligent one-key lifting of stairs, which is simple and reliable to operate. It uses double lifting oil cylinders and double locking rack cylinders, which is safer and more reliable. It uses aluminum profile pedals, which are anti-slip and more beautiful. It uses LED lights, which are beautiful in appearance and more practical. The hydraulic and electrical components of the whole vehicle are all configured with European and American brands. The vehicle is equipped with a safety interlock and emergency unlocking system. The vehicle is equipped with an intelligent management system and an active anti-collision system to ensure safer vehicle operation.