▎ 摘　　要

NOVELTY - A preparation method of nano-graphite sheet precursor whose steps, comprising the following steps: (A) providing a carbon or graphite material and a binding substrate, and mixing the carbon or graphite material and the binding substrate into an even mixture; (B) performing a molding process for the even mixture to obtain a bulk material embryo; (C) performing a heat treatment process for the bulk material embryo under the atmosphere environment to obtain a nano-graphite sheet precursor. Thus, the present invention can prepare the nano-graphite sheet precursor assisting in producing high-quality graphene sheet.