The application relates to an intelligent power server applied to a protection and control system for an intelligent substation. According to the application, merging unit and intelligent terminal integrated devices for all bays in the intelligent substation are directly accessed to the intelligent power server. Each merging unit and intelligent terminal integrated device is accessed to one of transport ports on the intelligent power server through an embedded high-bandwidth switched communication network. The intelligent power server realizes measurement and control and protection functions of primary devices throughout the substation and exchange of total station information and a telecontrol function.