This paper deals with a method and system of scenario information model based on electric power scene. The construction method includes the following steps: (1) Collecting scene information, (2) Scenario information classification, (3) Information model construction, (4) The formation of power operations situational awareness system and scene applications. Based on the scenario information model of electric power operation scene, this paper describes the entity from the six dimensions of human, auxiliary equipment, environment, time, task and service, and finds out the relationship between entity, instance and entity, and constructs information model, To achieve the power of the task of service discovery, interpretation, query and unified scheduling, to provide the necessary services.