The mechanical eccentricity makes much more influence on precision of one pair pole reluctance resolver.One pair pole axial flux reluctance resolver with new magnetic structure is put forward,which has compensating character inside its two side air gap.The prototype has both exciting windings and signal windings in its stator,which are vertical to each other.There is no winding in its rotor and one inclined ring is set in it.By using analytical method,the conclusion is got that the resistance of the reluctance resolver is varied by changing its electro-magnetic coupling area.At the same time,by selecting appropriate shape of the inclined ring of rotor,the output sine and cosine signal of the EMF is optimized.To analyze the axial flux through the stator and the rotor,3D transient FEM is used.The character of the EMF in signal windings is got at the same time.The FEM result agrees well with the analytical result,this will offer us the basic parameters for the further analysis in the future.