Abstract: Aiming at the problems of low construction progress, low cost control efficiency and untimely early warning of construction safety risks in the process of railway construction, this paper designed a whole life cycle engineering management system for construction project based on Building Information Modeling(BIM), and carried out a specific planning from the formulation of project standards in the early stage to the later operation and maintenance. Due to the problem of data transmission between construction period and operation and maintenance period, the paper designed a conversion process model from post completion model to operation and maintenance after completion (the final stage of construction). The system has beed applied to the reconstraction project of station building in Beijing Fengtai Railway Station, and meets the project reguirements.