The invention provides an electrification control method and device. According to the electrification control method and device, a non-master control board determines a self-electrification mode and can dynamically determine whether or not it is necessary to be electrified according to an electrification instruction issued by a master control board based on the determined electrification mode. If the determined electrification mode is an automatic electrification mode, it is not required to wait the electrification instruction issued by the master control board, a main power supply switch is directly switched on to make a main supply electrify the non-master control board, and therefore it is ensured that the non-master control board is automatically electrified on the condition that the master control board cannot send the electrification instruction or the non-master control board needs to run independently without the management of the master control board.