Massflow software is a high-efficiency surface disaster dynamics process simulation software, which can simulate the whole process of landslides, debris flows, debris flows, flash floods, avalanches, weirs and other geologic hazards and the dynamics of the disaster chain, and is also applicable to the hydrological calculations of mountainous watersheds, tailing ponds, coupled flow-solidity, and other series of numerical simulation of disaster problems. The software can reveal the evolution process of geologic hazards in space and time in real time, and provide theoretical and technical support for quantitative risk assessment of geologic hazards, planning and layout of infrastructure and cities and towns, as well as the formulation of emergency disaster mitigation and relief strategies.