▎ 摘　　要

NOVELTY - The method involves depositing a metal layer on the graphene of heat conducting sheet by deposition method, obtaining metallized heat graphene sheet, coating a first connecting agent between each two metallized heat graphene sheets, forming a stacked sandwich structure of at least one layer of metallized heat graphene sheet-first connecting agent-metalized heat graphene sheet, heating the stacked sandwich structure of at least one layer of metallized graphene sheet-first connecting agent-metalized heat graphene sheet, melting the first connecting agent, forming at least one layer of metallized graphene sheet-first connecting layer-stacked sandwich structure of metallized heat graphene sheet, and cooling the stacked sandwich structure of at least one layer of metallized graphene heat conduction sheet-first connection layer-metalized graphene heat conduction sheet to obtain graphene metal composite radiating fin. USE - The method is useful for preparing graphene metal composite radiating fin. ADVANTAGE - The method: is simple process and easy to realize; has low density, high mechanical strength, high heat conducting coefficient surpassing the traditional radiating material, and high thermal conductivity; and utilizes vapor deposition metal layer on heat graphene sheet and connected by the first connecting layer, so that the multilayer graphene tightly combined. DETAILED DESCRIPTION - INDEPENDENT CLAIMS are also included for: a preparation method of radiator; and a radiator. DESCRIPTION OF DRAWING(S) - The drawing shows a flowchart illustrating the preparation method of radiator (Drawing includes non-English language text).