▎ 摘　　要

NOVELTY - The method for preparing graphene, involves using hydrogen-containing polysilane as a reducing agent to reduce graphene oxide, and obtaining graphene. USE - Method for preparing graphene (claimed). ADVANTAGE - The preparation method avoids the use of hydrazine hydrate and its derivatives such as hydrogen iodide and sodium borohydride which are highly toxic, strongly volatile and strongly corrosive substances, as reducing agent, and prepares the graphene which is safe and environmentally-friendly.