Aluminum alloy photovoltaic mounting systems are used to position, install, and secure solar panels in photovoltaic electricity generation systems, with each kg of aluminum alloy photovoltaic mounting system corresponding to a power capacity of 250 W. This dataset includes major raw and auxiliary materials, energy inputs, atmospheric emissions, and waste from the production process. Infrastructure such as manufacturing equipment and facility construction are excluded from the system boundary. The end-of-life recycling phase of the photovoltaic mounting systems is included in this dataset, assuming a 100% mass recycling rate for aluminum, although energy and material inputs during the disassembly and recycling process are not included. The life cycle inventory was compiled from multiple data sources. The production of aluminum alloy photovoltaic mounting systems begins with extrusion. The process involves preparing aluminum profiles semi-finished products (procedures including heating, heating of extrusion cylinder, extrusion discharge, sawing, straightening, cutting to fixed length, etc.), followed by surface treatment processes (shot blasting, water washing, degreasing, alkaline etching, neutralization, oxidation, sulfuric acid recovery, draining, material discharge), and finally deep processing procedures.