The invention discloses a power distribution cabinet. The Power distribution cabinet comprises a cabinet body and a cabinet door; two sides of the interior of the cabinet body are respectively provided with a cable clamping device; each cable clamping device comprises a horizontal plate and an arc-shaped plate; one end of the arc-shaped plate and one end of the horizontal plate are both provided with a wire passing assembly; each wire threading assembly comprises a frame; a first clamping plate and a second clamping plate are arranged in the frame body; and an elastic assembly is arranged between the first clamping plate and the second clamping plate. Since the wire clamping devices are arranged in the cabinet body, when cables are installed, the cables pass through the wire clamping devices, so that the cables can be arranged in a unified manner, and disorder of the cables can be avoided, and therefore, the problem of disordered arrangement of cables in an existing power distribution cabinet can be solved, and the cables will not be damaged by pulling when being installed, and as a result, the overall use information of the power distribution cabinet can be improved; and since the elastic assembly is arranged between the first clamping plate and the second clamping plate, so that a space for mounting a cable can be adjusted, and therefore, the installation of the cable is more convenient, and the cable can be prevented from being cut when passing through the corresponding wire clamping device, and thus, the overall safety of the power distribution cabinet can be improved.