▎ 摘　　要

NOVELTY - A graphene functionalized nano needle tip comprises metal needle tip whose surface is covered with continuous graphene layer, where the tip end of the metal needle tip has a diameter of 10-500 nm, and the graphene and tip surface have better interface contact. USE - Graphene functionalized nano needle tip. ADVANTAGE - The graphene functionalized nano needle tip has excellent electrical properties, better electrical conductivity, better durability and interfacial contact. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is also included for a method for preparing a graphene functionalized nano needle tip, which involves contacting the metal tip with carbon source, and forming a carbonization layer on the surface of the metal tip by heat treatment, where the carbon source is high purity graphite target or carbon containing molecule, forming graphene on the surface of the metal tip by electric heating or annealing under gas protection conditions, fixing the electric heating method to a metal needle tip with carbonized layer on a conductive carrier, applying a transient voltage across the conductive carrier, causing an instantaneous current to generate Joule heat through the conductive carrier, and conducting heat to the metal tip form graphene on the surface of the metal tip, annealing the graphene on the surface of the metal tip, and annealing at 500-600 degrees C to obtain the finished product.