The invention discloses a power dispatching equipment main data management method based on a data center according to the application requirement of a ledger of power dispatching equipment. Equipment data in a power grid operation control system, a production management system and a power grid operation management system are integrated through the data center to form power dispatching equipment main data, and the equipment data are applied to dispatching service management through data issuing. According to the power dispatching equipment main data management method based on the data center, an equipment ledger applied to dispatching service management and capable of being recognized by the systems is formed, and recognition and interaction of equipment data among different departments and different systems of a power grid company are guaranteed.