▎ 摘　　要

NOVELTY - Preparing a three-dimensional graphene powder involves manufacturing raw silk, preparing spinning solution, spinning, pre-oxidation, drying and carbonization. USE - Method for preparing a three-dimensional graphene powder. ADVANTAGE - The method enables to prepare a three-dimensional graphene powder that avoids the process of ordinary polymer-catalyzed carbonization, does not require expensive catalysts and simplifies product purification processes, and has high carbon yield, easy process amplification, low production cost and strong product quality controllability.