The invention discloses an aluminum bus bar and a processing craft. The processing craft at least comprises the following steps: step 101, manufacturing solderable coating on the surface of the aluminum bus bar, which specifically comprises: firstly plating nickel coating with a thickness of 8 microns on the aluminum surface, and then plating silver coating with a thickness of 15 microns on the surface of the nickel layer; step 102, preparing a conductive substrate of the aluminum bus bar, which specifically comprises: the material of the conductive substrate of the aluminum bus bar is 2A12 aluminum alloy, bonding pad extension paws used for welding and connecting other modules are designed on both sides of the material of the conductive substrate, and the density of the 2A12 aluminum alloy is 2.78g/cm3; and step 103, preparing an insulating layer of the aluminum bus bar, which specifically comprises: the aluminum bus bar is composed of a plurality of combined strip-shaped conductive substrates, lamellar insulating materials are arranged between the conductive substrates, the material of the insulating layer is a polyimide board, and screw mounting holes for conveniently mounting bus bar components on a power supply equipment module structure are designed in the surrounding of the polyimide insulating board.