With the combination of mathematical derivation and existing experimental results,the calculation method of maximal frictional sliding power of the friction pair in frictional sliding process was proposed.The proposed method shows a simple calculation process for the maximal frictional sliding power,which is only correlated with the geometric size,material property and work conditions of the friction pair and not necessary to employ experiment and mathematical extremum approaches.The radial temperature field property was deduced based on the proposed formulation.It is found that the radial temperature rise of friction disk varies linearly with radius when the material,normal pressure and rotational speed are determined.The axial 3dimensional temperaturerise figure could be obtained through the proposed calculation formulation and MATLAB software,which provides the friction disk temperature filed analysis with a datavisualized reference.