A magneto-dynamic generator is a device that utilizes the energy of a magnetic field to convert it into electrical energy. It is based on Faraday's principle of electromagnetic induction, which generates an electric potential in a conductor through a change in the magnetic field, which in turn generates an electric current. Magnetic power generator has the advantages of high efficiency, environmental protection and low noise, especially suitable for renewable energy power generation system. In the field of wind power, hydroelectricity and other fields, magnetic power generator shows great potential, can effectively improve the energy conversion efficiency, reduce environmental pollution, is one of the important direction of the future development of green energy.