▎ 摘　　要

NOVELTY - Preparation of self-assembly growth micro-nano-scale graphene comprises carrying out electron beam evaporation of transition metal film on substrate, controlling thickness by controlling transition metal flow, temperature, pressure and time, forming transition metal particles using surface tension of metal thin film, distributing on substrate, and carrying out chemical vapor deposition on array. USE - Method for preparing self-assembly growth micro-nano-scale graphene used as secondary cover of seed crystal and graphene device electrode (claimed).