The utility model relates to a transformer-station remote monitoring device, and specifically relates to a transformer-station remote monitoring device for a high-voltage chamber of the transformer-station. The technical problem to be solved is to provide a device which can perform the remote monitoring and control of the humiture of the high-voltage chamber of the transformer-station simultaneously. The technical scheme is that, each of humiture monitoring points of the high-voltage chamber of the transformer-station is provided with a humiture sensor, a signal output terminal of each humiture sensor is connected with an input port of a PLC, the PLC is installed in the high-voltage chamber of the transformer-station and connected with a fan and a lighting control cabinet, the PLC is connected with a monitoring computer installed in a monitoring center through a communication network, and the monitoring computer is connected with a background server though a local area network. The device can be widely used in various transformer stations.