Technically speaking, the construction problems and operation and maintenance problems in the middle and late stage of the project can be found and corrected in the early stage of the project, reducing the construction difficulty and realizing the controllability of the project. From the management point of view, BIM model can be used to realize the collaborative management of all participants, which reduces the communication difficulty and realizes the controllable personnel. In terms of information, all engineering information is loaded on the BIM model, which reduces the loss of information and realizes data controllability. BIM can realize all-round control of project management, so BIM subverts not drawing technology, but the whole AEC industry.