▎ 摘　　要

NOVELTY - The method involves introducing protective atmosphere in the chemical vapor deposition reaction furnace until there is no impurity gas in the furnace, raising the furnace temperature to 700-900 ℃, introducing carbon source into the furnace, and reacting for 10-20 minutes, closing power supply, cooling to room temperature, and taking out the sample to obtain wrinkle-free graphene, where the carbon source comprises any one of ethanol, methane or camphor. USE - Method for preparing wrinkle-free graphene including electronics, magnetics, catalysis and other field industrial application. ADVANTAGE - The method enables to prepare wrinkle-free graphene, and has high quality, low cost and stable performance, does not depend on metal growth substrate, and provides high quality graphene material for optical, electrical, magnetic, catalysis and other fields.