▎ 摘　　要

NOVELTY - Preparation of large scale graphene comprises taking organic matter and graphite at ratio of 5:1-500:1, dissolving organic matter in graphite solution, taking organic melt solution when organic solution reaches softening point; placing in roller grinding machine, roller heating, slowly adding graphite, roller grinding continuously, stripping off to obtain graphene solution organic matter melt mixture; and soaking in distilled water, and washing for 3-5 times to remove dissolved organic matter. USE - Method for preparing large scale graphene (claimed). ADVANTAGE - The method is simple, easy, inexpensive, green, environment-friendly, non-toxic and harmless. It ensures high efficiency, and fits large scale production.