The research of electrically excited synchronous motor (EESM) was based on magnetic coupling resonancewireless power transfer system. To overcome the disadvantages of EESM slipring brush′s structural unreliability and requirement of maintenance, resonant radio transmission mode could be used as a way of providing excitation energy for the rotor. By modeling on EESM and discussing on the method of rotor field oriented control, EESM control system model was established. Through the prototype test, EESM rotor field oriented control and resonant wireless excitation method carried on the confirmation through the experiment primarily.