This paper analyzes lading procedure of planes in plateau. In view of taking the converted friction coefficient as its model being not suited for calculating a plane slipping length in plateau airfield by the existing standard method, the paper establishes a mathematic model on a plane landing at plateau airfield under the condition of the influence of break performance and the location, and puts forward a calculation method for friction coefficient based on relationship between the velocity and the friction coefficient in breaking, And the paper writes a plane slipping length progress in language Visual C++. Through on-site test in plateau, maximum absolute error of test length and the computed length measured practically by type-I aircraft does not exceed by 48 m, and its maximum relative error does not exceed by 2.7%; the maximum absolute error of test length and the computed length measured practically by type-II aircraft does not exceed by 100 m, and the maximum relative error does not exceed by 4.2%. The result shows that the calculation model can be used for calculating slipping length in plateau airfield, and the model is high in precision and is wide in calculation scope.