Abstract: The design of coal preparation plants mostly adopts two-dimensional design mode, resulting in no BIM model asset accumulation in most coal preparation plants. In this paper, by building a BIM collaborative design platform, the concept of three-dimensional collaborative modeling is applied to the BIM model reconstruction of coal preparation plants based on design drawings, and a set of BIM model reconstruction mode of coal preparation plants with high efficiency and high quality is studied, It solves the problems that affect the modeling efficiency and modeling quality in the BIM model reconstruction of coal preparation plant in the design and construction stage, such as difficult work development, difficult cooperation and many collisions. It is suitable for application in engineering projects with BIM collision inspection, operation and maintenance management and other application requirements, which need to establish BIM model.