The invention discloses a directionally arranged graphene super high heat conductivity composite material, and a preparation method thereof. The directionally arranged graphene super high heat conductivity composite material is composed of non-oxidation reduction graphene nanometer sheet, a high molecular matrix, a dispersant, and a couplant through combination; gradient magnetic field is appliedso as to realize internal directional arrangement of the non-oxidation reduction graphene nanometer sheet in the high molecular matrix. According to the preparation method, full utilization of graphene surface internal high heat conductivity characteristics is adopted, directional arrangement is realized under the graphene landau diamagnetism action; when the adding amount is equal, the heat conductive performance of the obtained is much better than that of other doped graphene materials or common graphene mixed materials.