The hoisting process of prefabricated building is complex, the construction mechanization degree is high, and the construction safety guarantee measures are high. Before the construction begins, the construction unit can use BIM technology to carry out the construction simulation and simulation of prefabricated building, simulate the hoisting and application of on-site prefabricated components, and optimize the construction process. It can also simulate construction site safety emergencies, improve the construction site safety management plan to eliminate safety hazards, so as to avoid and reduce the occurrence of quality and safety accidents. The application of BIM technology can also optimize the site layout and vehicle running route of the construction site, reduce the secondary handling of prefabricated components and materials in the site, improve the lifting efficiency of vertical transportation machinery, and speed up the construction progress of prefabricated buildings