Based on the simulation analysis and research for the new type of the rotary noncontact electric power transmission device,the magnetic figure, magnetic field distribution,the magnetic field distribution in the air,as well as coupling coefficient,mutual Inductance curve,selfinductance curve and leakageinductance curve in the difference of core coil space were calculated,the experiment research for the rotary noncontact electric power transmission device was done,the correctness of finite element simulation result was validated.