combined with the engineering procurement construction (EPC) project of zone B project in phase Ⅱ of a national security industry demonstration park, this paper briefly expounds the applicability of BIM in the curtain wall design of intelligent buildings, and analyzes the specific application of BIM in the curtain wall design of intelligent buildings in detail. Through the research of this paper, BIM can optimize the curtain wall design of intelligent building and improve the quality management level of intelligent building design.