The variations of 2-D MT field in anisotropic medium for conductivity were studied in this paper. The electromagnetic field was worked out with finite element method(FEM)

and the apparent resistivity was obtained with the help of auxiliary field after variational problems in an anisotropic medium were solved. The differences of magnetotelluric field between anisotropic and isotropic media under TE

z

mode were discussed. Furthermore

the influence of dipping anisotropy and varying frequency was analyzed on the change of MT field. Finally

the characteristics of MT field response in the anisotropic media were obtained after discussing the effects of high resistance and low resistance on MT field and the impact of resistivity parallel to and perpendicular to the strike of structure.