The magnetic susceptibility and spin wave resonance is studied by the methodof Green’s function based upon Heisenberg model with the surface magneticanisotropy.It is proved that the ferromagnetic film which loses translationalinvariance in one direction has nonlocal magnetic susceptibility tensor.Applingthe method of nonlocal magnetic susceptibility formulation

the relation betweenthe surface magnetic anisotropy of film and the modes of spin wave excited bythe uniform microwave field is derived.One gives the expressions of positionand intensity of resonance peaks.According to the theoretical formula given inthis paper

the surface magnetic anisotropy can be measured by the experimen-tal method of spin wave resonance.