Abstract: The optimization idea of the underground pipeline comprehensive construction of Cuihu Science Park project in Haidian district in Beijing is analyzed, and how to apply BIM technology to the comprehensive design of three-dimensional pipeline is discussed. The construction results show that BIM technology can intuitively, efficiently, fully and accurately help us coordinate the layout of various professional pipelines in the underground space, optimize the electromechanical pace, and ensure the clear height requirements of the functional space.