For the problem of the nonlinearity,uncertainty and external disturbance of the ball and plate system,in order to make the ball trajectory tracking of the desired dynamic quality,according to the Lyapunov stability theory,firstly combine the state space model of ball and plate system with the low-pass filter,then define the system deviation,select the appropriate Lyapunov function and obtain the virtual function,and finally gradually deduce an inversion controller with low-pass filter.The simulation results show that the improved controller can effectively filter the interference of the system itself and the outside,improve the control precision,and meet the control requirements of the system.