The invention relates to the technical field of electricity, in particular to a power supply cabinet. The power supply cabinet comprises a cabinet body, an input switch module and an output switch module, wherein the input switch module and the output switch module are arranged in the cabinet body separately; the output switch module comprises a backboard, junction boxes, main busbars, at least one hot pluggable switch and output terminal modules; and the backboard comprises threading holes and is arranged in the cabinet body. The junction box and the hot pluggable switches are arranged on the same side surface, so that regular wires can be ensured, and the wire distances between the hot pluggable switches and the junction box are further reduced to reduce the use cost of the wires. Furthermore, when the power supply cabinet is externally connected with user equipment, the spacing distances between the output terminal module and the hot pluggable switches are relatively short and an engineer can achieve connection of the hot pluggable switches and the output terminal module only by using relatively short wires, so that the use cost of the wires is reduced.