Abstract: The analytic solution for anisotropic steady state heat conduction is applied to analyse the anisotropic rectangular cantilever plate with one edge of nonuniformed boundary temperature and other edges of convection at the first time.The effect of piy angle on the temperature distributions is discussed.With the increasement of the anisotropic angle,the gradient of temperature in the plate is increased.Numerical results show there is the lowest gradient of temperature in the cantilever plate with 0° anisotropic angle.