In this paper, the motion system for motor drive, using a disturbance observer movement structure, the control architecture is mainly used for the speed of the drive circuit, the input signal is subtracted from the reference model of the reciprocal of the first-order output signal composed, and selected suitable low- pass filter, so the disturbance observer effectively results in the experimental platform. This control scheme can reduce uncertainty and no interference by the external reference model and the differences between models of the unknown system caused. Another proposes a framework to eliminate inhibitory control system caused by the nonlinear factors of self-excited oscillation (hunting) of the control system for the speed loop architecture and uses a genetic algorithm to adjust the control to suppress architecture Ks、Ka value, so that the vibration inhibitory control architecture can effectively suppress oscillations caused by this system.