A type of design method of monitoring system on pulley car is introduced. The system is composed of car control unit, ground control unit, communication unit and computer management unit. The key element of system is based on induction radio communication technology. The position of pulley car can be detected dynamically by following hardware and software unit. At the same time, the signal of position is sent to host linked. By watching animation of pulley car, workers standing in workroom can know the position of pulley car accurately at any moment.