The deepening of BM prefabricated room is to use building information model technology to carry out a comprehensive and detailed digital design and management process of the prefabricated room, mainly including 3 d modeling, system integration and collision detection and other links. In this process, the design team established an accurate three-dimensional model, integrated the structure of the machine room, the mechanical and electrical system and the equipment information of the equipment room, carried out multi-professional coordination, and timely found and solved the conflicts in the design. At the same time, BIM technology also supports the optimization of construction scheme and material management to ensure the efficiency and accuracy of construction. In addition, the deepened model not only plays a guiding role in the construction stage, but also provides important data support for the operation and maintenance of the computer room in the later stage, which greatly improves the overall quality and management efficiency of the project, and thus promotes the transformation of the construction industry to intelligent and digital.