The production of aluminum alloy photovoltaic mounting structures begins with the preparation of aluminum profile semi-finished products via an extrusion process (procedures include heating, extrusion cylinder heating, extrusion discharge, sawing, straightening, and cutting to specified length), followed by surface treatment processes (shot blasting, water washing, degreasing, alkaline etching, neutralization, oxidation, sulfuric acid recovery, draining, and material unloading), and finally deep processing procedures.