BIM integrated platform as its core, BIM5D platform integrates multiple professional models such as building, structure and electromechanical; and BIM integrated model as its carrier, it integrates information of the construction process to the same platform including progress, cost, quality, security, process, drawing, material and labor. BIM model is audio-visual and can be calculated and analyzed, which can provide timely and accurate geometry, engineering, resources and planning time for the construction process, and thus it helps managers make effective decisions and management, reduce construction change, shorten project duration, control project costs and improve quality.