Abstract: Heavy load trains have high power and significant fluctuation of traction load, and the accurate prediction of their operation data is crucial for the analysis of traction power supply system. The problem of insufficient accuracy exists in the calculation method of heavy train operation data based on physical mechanism. Therefore, this paper proposes a prediction method of heavy load train operation characteristics based on scenario generation method to achieve accurate prediction of heavy load train operation position and power. The proposed heavy load train power prediction method is validated by taking a typical heavy load line as an example.