Abstract: Aiming at the application of building operation and maintenance management, an integrated facility management system that integrates building equipment management, property management and building intelligent management based on BIM data is proposed. It further integrates enterprise management information system and intelligent management system, combining with related application, the paper also introduces the BIM-based integrated facility management system architecture, BIM integration, and database design of integrated facility management system. The results show that the BIM-based integrated facility management system realizes the integration of traditional facility management, property management and building intelligent management. The system adopts BIM technology to standardize and visualize building elements, which is the optimization and upgrading of building facility management system.