With the precise speed control and the whole closed-loop controlled by VVVF drive system, hospital elevator has high-precision running condition. It can make the stop layer very accurate, start and stop very stable. VVVF inverter control system together with precision control of motor accelerated degrees make traction machine noise smaller. This fully embodies the”people-oriented” design idea, creating a warm and comfortable space for both doctors and patients. It is convenient for beds, wheel chairs and trolleys to access by configuring a flat layer function; also the hospital elevator plays its medical role to facilitate the rapid rescue of patients express.