This paper mainly studies the hardware design and realization of excitation control system on the five-phase dual stator winding induction generator.This generator has basket winding and there are two types of five-phase winding on its stator:one type is control winding that is connected with excitation converter;the other is power winding which can provide direct electrical power after rectification.Excitation converter consists main circuit based on IGBT modular,drive circuit,digital signal calculation circuit,sampling conditioning circuit,protection circuit and so on.Excitation controller provides generator with changeable excitation reactive power to control the excitation of generator,realizing the control of output voltage.