▎ 摘　　要

NOVELTY - The line has a substrate and a graphene layer deposited on the surface of the substrate. The substrate comprises any one or a combination of two of copper, brass or aluminum alloy. The thickness of the graphene layer is 2-18 mu m, preferably 3-7 mu m, and more preferably 5 mu m. USE - Photovoltaic lead line used in industrial large-scale production. ADVANTAGE - The line increases the adhesion and impact resistance of the coating without affecting the electrical conductivity and the corrosion resistance of the photovoltaic lead-out wire, which is increasing the service life. The preparation method of the photovoltaic lead wire is simple, time-consuming. The raw materials are easily available. The price is low and is easy to realize. DETAILED DESCRIPTION - INDEPENDENT CLAIMS are included for the following: (1) a method for preparing a photovoltaic lead-out wire; and (2) a photovoltaic module.