The purpose of this paper is to propose an modified list method based on the Verlet neighbor list for the large momentum system in the molecular dynamics field. The list updated mechanism of this method is controlled by the momentum of each molecule. The variation of the list is more apparent and rapid as the system's momentum increasing through this study. Therefore, the list updated timing is realistic than the traditional Verlet neighbor Iist in the large momentum system, such as the nano-flow problem. It is applicable to construct the reasonable calculation and benefit to the improvement of MD's calculation.