The invention relates to a method for hierarchically sharing power telecontrol original data and realizing equipment control. The method comprises the following steps of: firstly, designing a system into a three-layer model: a substation layer, a telecontrol original data layer comprising a telecontrol original data sharing system, and an automatic system layer; then, connecting the telecontrol original data sharing system with multiple substations in the substation layer; connecting multiple systems in the automatic system layer to a data publishing and control module, subscribing required data, distributing the ID to each automatic system by the telecontrol original data sharing system, and establishing a data publishing relationship table; and finally, sharing power telecontrol original data or controlling equipment. In the method disclosed by the invention, the various layers realize corresponding functions, and provide interlayer services; the coupling degree among diversified communication of the substations and the automatic systems is reduced; limitation of a communication line among the automatic systems and the substations is broken through; furthermore, the requirement of a substation telecontrol machine on the client side number of the various automatic systems is shielded; and thus, telecontrol original data network sharing is realized.