Taking the application of BIM technology in the construction project of underground parking garage and supporting commercial buildings in Lvxin Park as an example, this paper analyzes the application of BIM technology in and its effect on the project design modeling, construction project management and construction organization design. Considering the building characteristics of Lvxin Park, the application of BIM Technology is conducted in areas of informatized parametric design, collision inspection, pipeline integration adjustment, layout management and cost management, to makes the project process visible. Then the problems of drawing design and general layout can be found and solved in advance to improve the construction scheme. Lastly, with BIM platform as the core, the useful information in the construction process is loaded into various professional models, and the 3D visual and computable analysis characteristics of BIM model are used to provide data support for project management, so that managers can make more effective decision-making and more refined management.