This article take the elevator controller for research object and investigate the elevator control system based on taking the SCM as the core of the elevator controller. The control function of elevator is divided into several modules and different controller complete particular functions of each part. The author analyzes PID controller characteristics, the performance analysis of the human-simulated intelligent PID control algorithm and introduces the designing method of hardware in elevator control system. This is suitable for practical elevator research and satisfies requirements of the stability and safety in elevator control.