An implementation mode of the invention provides a system and a method which are used for providing power data related services for users on the base of the wide area network. The system can comprise: a data management server which comprises: one or a plurality of databases configurated to store user information and power related data information, and a data management module configurated to manage the user information and the power related data information; and a data application server which is configurated to provide the power data related services appointed by users on the base of the user information and the power related data information. According to the implementation mode of the invention, a novel-mode power data related service system is provided, the traditional power service mode is completely changed, various defects in prior art are overcome, the service efficiency is greatly improved, and at the same time the resource is saved, the cost is reduced and the good experience is also brought for the users.