▎ 摘　　要

NOVELTY - Mobile terminal backplane comprises heat conductive layer containing graphene and/or graphene oxide, and a thermosetting resin; a protective layer, the protective layer being disposed on one surface of the heat conductive layer, and the protective layer contains diamond and the thermosetting resin. USE - Used as mobile terminal backplane. ADVANTAGE - The mobile terminal back plate has simply structure, easy to realize, high yield, low cost, high hardness, high temperature resistance, high relative dielectric constant, strong anti-signal shielding ability, high anti-bending strength, and wear resistance and thermal conductivity. DETAILED DESCRIPTION - INDEPENDENT CLAIMS are also included for: (1) mobile terminal comprises mobile terminal backplane; and (2) preparing mobile terminal backplane comprising subjecting raw material forming the heat conductive layer to a first kneading treatment to obtain first mixture, subjecting the raw material forming the protective layer to a second kneading treatment to obtain second mixture, and performing hot press forming or injection molding of the first mixture and the second mixture to obtain final product.