With the continuous development of information technology in China, the scale of communication network is gradually expanding, and the number of communication network equipment is also increasing. As a specific environment for centralized placement of communication network equipment, the construction and operation and maintenance of communication network room is the foundation to ensure the stable operation of communication network. Environment, management, safety and maintenance should be considered in the construction of computer room. This paper expounds the application of BIM technology in the operation and maintenance system of communication network room， analyzes the characteristics of communication network room， and further discusses the application of visual operation and maintenance system of communication network room.