The invention relates to a transformer substation remote picture transmission method and a transformer substation warning direct transmission method. The transformer substation remote picture transmission method comprises the following steps that: a monitoring host decomposes transformer substation pictures into graphic files and graphic data, the monitoring host firstly transmits the graphic files to a master station, and the monitoring host further transmits the graphic data to the master station after the graphic files are received by the master station. The monitoring host and a graphic gateway are arranged inside the transformer substation, the monitoring host is in communication connection with the graphic gateway, and the graphic gateway is in communication connection with the master station. The warning direct transmission method comprises the following steps that: the graphic gateway receives warning information transmitted by the monitoring host, processes the warning information and then uploads the processed warning information to the master station. The transformer substation remote picture transmission method and the transformer substation warning direct transmission method both can guarantee effective transmission of information and improve stability of the information during the transmission process, and thus, information integrity and transmission reliability are guaranteed.