▎ 摘　　要

NOVELTY - Preparing magnetic graphene composite nano-wire, comprises: (1) mixing the graphene oxide, metal salt and deionized water to obtain suspension; where the metal salt comprises at least one of iron salt, cobalt salt and nickel salt; (2) under the assistance of magnetic field, mixing the suspension obtained in the step (1) with the reducing solution, and then evaporating to dryness to obtain the magnetic graphene composite nanowire. USE - The method is useful for preparing magnetic graphene composite nano-wire, which is used in battery electrode, catalyst or drug delivery carrier (claimed). Can also be used in field of nano material. ADVANTAGE - The magnetic graphene composite nanowire is composed of multiple magnetic graphene porous nanosphere assembly, and has uniform texture. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is also included for magnetic graphene composite nano-wire composed of multiple magnetic graphene porous nano-ball assembly; where the magnetic graphene porous nano-sphere comprises graphene and magnetic substance, the magnetic substance is magnetic metal simple substance and/or magnetic metal compound.