The traverse transport coefficients of plasma in strong magnetic field have been calculated by Kubo formulas and Landau representation. They are diffusivity, thermal-conductivity and viscosity. The method used in this paper is better than the general one of solving Boltzmann equation.1) The system, which is in strong magnetic field and subjects to multibody interaction, can be calculated without difficulty in principle. 2) It's physical model is simple and clear. 3) The analytic expressions of traverse transport coefficients can be obtained by calculating the matrix trace. Finally, we give a comparison between our results and general results obtained from Chapman-Enskog method.