The cost management of traditional construction projects has the following shortcomings. The calculation accuracy of engineering quantity in bidding quotation is not high; the drawing is not easy to identify; call of historical data is inconvenient; dynamic management and refined management are lacking. This article discusses the connotation of BIM technology specifically and the application of BIM technology in cost control management of construction project. BIM technology can improve the quality and efficiency of cost management, and has become one of the main trends in the development of c...