Energy efficiency and output uncertainty are two of the most challenges that dynamic conversion is facing. Controlling the dynamic system variables is complicated due to the variability and unpredictability of the parameters, especially fast transient response. Sliding mode control is one effective technique that has been used to control and improve dynamic conversion system efficiency and to reach the rated values. Most of the recent research focus on the design, performance, and behaver study of sliding mode control in order to enhance the control system's performance. This paper presents a new Sliding mode control method of Interior-mounted permanent magnet synchronous motor. The proposed model solves many controlling problems that many other controllers facing such as PI controller, LQ regulator, and even PID linear methods. Also, the model has fast control response to the IPMSM fast dynamic transient and can solve the overshoot problem which leads the system to have more efficient performance. The results of SMC have been compared to PID controller applied to the same system. The simulation results have shown better performance of sliding mode control over the PID controller. The results are simulated using MATLAB Simulink software.