Abstract:The heavyrail rolling process is simulated with MSC.Marc software. The flowing law of metal by slicing the nephogram of X, Y direction displacement is analyzed. Then the course of deforming by “timedisplacement” chart of nodes on the outline of horizontal slice is particularly studied. The distribution of the coefficient of elongation is optimized through analyzing Z direction displacement. The result shows that utilizing this method to optimize the universal rolling pass which designed by experience can save the development time and the cost, and improve the quality of heavy rail.