Abstract: The computation method for the baroclinic large-scale development under the kinematic boundary condition of earth's topography is considered. Two tendency computations of development over Tienshan-Altai region are completed with relaxation technique. The results show that over Tienshan-Altai region the orographical disturbance may reach as large as 70-80m/24hr on 700mb and 100m/24hr on 900mb level. Thus the orographical influence is of importance over that area. However, owing to the difficulty in the proper selection of surface wind used in the present model, it is suggested that the boundary condition should be re-formulated.