Construction progress prediction method and system based on BIM model

The invention discloses a construction progress prediction method and system based on a BIM model. The method comprises the steps of obtaining construction information so as to construct a triple-level model, and the triple-level model comprises a macro model, a meso model and a micro model; establishing a construction progress plan, and linking the construction progress and the triple-level model so as to generate four-dimensional progress simulation; according to four-dimensional progress simulation, building a construction task decomposition structure so as to formulate construction plans of different levels, according to the project content, adding construction tasks and progress plans step by step into the construction plan to form a four-dimensional construction simulation model; according to the four-dimensional construction simulation model, guiding the progress construction progress, displaying each work of the construction process in the visualized object building component virtual building process,