In this paper, the standardized interaction mechanism between the checking master station of substation telecontrol forwarding data and the dispatching master station, the substation telecontrol is deeply studied, and a multiple remote check scheme of substation telecontrol forwarding data, which realizes the consistency check of the forwarding data between the dispatching master station and the substation telecontrol, the consistency check of the forwarding data between double substation telecontrols, and the consistency automatic check of the forwarding data under the mode of multi dispatching master stations and multi substation telecontrols.