For the problem of slow response and low steady state error of the servo system of stepping motor, a multi-modal control strategy is proposed. According to the error, adjust the function weight of the two control strategies for the controlled object, to make the final control continuous, and the switching undisturbed and smooth of control policy. The semi-physics simulation results show that the control strategy combines the advantages of fuzzy control and fuzzy PID control and the system has fast response, small shock, strong anti-interference ability, at the same time, the problem of low frequency oscillation and high frequency out of step is improved to a certain extent, so it has practical application value.