▎ 摘　　要

NOVELTY - The layer has a layer main body provided with a first nano-silver layer, a silver-graphene layer and a second nano-silver layer that are sequentially arranged on a base body, where thickness of the first nano-silver layer is about 1-5 microns, thickness of the silver-graphene layer is about 1-20 microns and thickness of the second nano-silver layer is about 1-5 microns. USE - Silver-graphene composite plating layer. ADVANTAGE - The layer is compact in structure, and reduces defects of high resistance contact corrosion resistance, heat dissipation and poor wear resistance in a prior art, and effectively isolates water molecules, corrosion medium, sulfide and substances into the plating layer body, thus preventing plating failure so as to effectively improve coating performance. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for a method for preparing a silver-graphene composite plating layer.