The invention discloses a remote verification system and method for telecontrol forwarding data of a transformer substation. The system comprises a transformer substation, a dispatching master stationand an operation and maintenance center master station, wherein the dispatching master station is connected and communicated with the operation and maintenance center master station through a servicebus, and the dispatching master station and the operation and maintenance center master station are separately connected and communicated with the transformer substation through a high-performance general service protocol (GSP). According to the remote verification system and method disclosed by the invention, the following three modes of verification functions can be achieved: 1, the consistencyverification of master sub-station forwarding table data is directly implemented at the dispatching master station; 2, the operation and maintenance center master station separately performs interaction with the dispatching master station and sub-station at an operation and maintenance center at the master station side, and the consistency verification of the forwarding table data between the dispatching master station and the transformer substation is implemented; and 3, at the operation and maintenance center at the master station side, the consistency verification of all channel data and forwarding table data of different telecontrol equipment in areas I and II is implemented. According to the remote verification system and method, safe and stable operations of power grids can be reliably guaranteed through multiple remote verification.