The invention discloses an electric power communication system visual display system based on diagram-model-data integration. The steps are as follows: dividing a backbone transmission network into a network control and data collection layer, a platform layer and a management application layer via an SOA architecture, realizing comprehensive management on different levels of the backbone transmission network, and finishing information horizontal sharing and application collaboration for the different levels of the backbone transmission network between same levels and between upper and lower levels of a communication management system; processing information for upper and low level connection by employing a public information model; and calculating the public information model via a network topology mapping model based on metadata, establishing a multi-constraint rule for a communication node and a topology layout, realizing dynamic association among a diagram, a device and data at the data layer, and realizing automatic generation and optimization of a network topological relation at the application layer, thereby providing a visual support for communication network comprehensive monitoring.