The utility model relates to the technical field of electrical equipment, it discloses a high -voltage cable distribution box, the box center is equipped with the backup pad, the backup pad will inside left room and the right ventricle of divideing into of box, be equipped with tapping plate in left side room, the right ventricle respectively, the upper end is equipped with the diaphragm in the box, the diaphragm both ends respectively with box swing joint, the diaphragm center with the backup pad is connected, a fan is provided on the diaphragm, be equipped with the guide duct in the backup pad, the guide duct with the fan is connected, the backup pad left and right sides is equipped with a plurality of shower nozzle, the shower nozzle with the guide duct is put through. The utility model discloses the rational utilization space, be equipped with the shower nozzle in left room, the right ventricle respectively, shower nozzle and guide duct are connect, by fan wind -guiding in to the box, the shower nozzle is direct to be spouted the cooling air on tapping plate, the heat emission that produces in the time of can in time working the cable falls, improves tapping plate's life.