In order to solve the problem that bat algorithm can not be used for high-dimensional calculation,the directional link was combined with bat algorithm to avoid premature convergence and enhance the ability of exploration,so high-dimensional calculation could be carried out and the global optimal solution could be searched faster.By building the mathematical model,the simulation was carried out in Simulink of MATLAB,and the experimental verification was carried out.The results show that the overshoot can be reduced by using the DC motor based on the active disturbance rejection controller optimized by directional bat algorithm,and the motor has fast response speed,stronger anti-interference ability and higher accuracy.