The utility model discloses a distribution unit for power supply, the package rubbing board body, wiring groove, socket, lightning protection device, install on the plate body the wiring groove, wiring groove one side is provided with the empty mounting panel of opening of second, install the empty mounting panel one side of opening of second the lightning protection device, the lightning protection device opposite side is installed the socket, socket one side is installed first sky and is opened the mounting panel, the second is empty open the mounting panel with install air switch on the first sky division mounting panel, the terminal copper bar is installed to the air switch lower extreme, terminal copper bar one side is provided with the locating hole, the air switch below is provided with the terminal screw, air switch installs the plastic cover in the below. Beneficial effect lies in: the utility model discloses can make that power -supply distribution in the rack is neat more, reliable, safety, specialty and pleasing to the eye, and occupation space is little, can realize the preceding terminated line demand of ordinary sky division for the maintenance of power is convenient more and reliable in the distribution rack.