The application of Building Information Modeling（BIM） technology in the cost management of electric power engineering can not only improve the level of accuracy and information

achieve information sharing

but also increase the efficiency of cost management at each phase of the project. This paper firstly introduces the character of BIM technology and its advantages in cost management

and then analyzes the character and problem of electric power engineering. At last this paper discusses the application of BIM at decision-making phase

design phase

bid and tender phase

construction phase

completion phase and maintenance phase and provides research idea of the application of BIM technology in electric power engineering cost management in the future.