▎ 摘　　要

NOVELTY - Preparing large-size graphene based on laser fixed-point processing comprises (i) uniformly coating a layer of molten carbon-containing polymer on the substrate, (ii) randomly placing many graphene blocks on the carbon-containing polymer, and (iii) using a laser light source to scan the entire area covered by the carbon-containing polymer until each graphene block forms a connection relationship with the surrounding carbon-containing polymer to form a complete graphene. USE - The method is useful for preparing large-size graphene based on laser fixed-point processing. ADVANTAGE - The method: improves controllability of the connection between the graphene blocks and the carbon-containing polymer.