▎ 摘　　要

NOVELTY - The present invention provides a manufacturing method for graphene and a method for exfoliating graphene. The manufacturing method comprises the steps of: forming a high temperature zone and a low temperature zone in a reactor; causing an initial solution containing a carbon source to flow from the high temperature zone into the low temperature zone so as to form a supersaturated solution to precipitate graphene layers. The method for exfoliating graphene comprises the steps of: imparting 0.3 to 5 electron volts of energy to two inter-stacked graphene layers to break at least one bonding layer so as to separate an upper graphene layer from a lower graphene layer. Accordingly, the present invention not only reduces the difficulty for manufacturing the graphene and equipment costs, but also produces large-area graphene layers and improves the yield rate of the exfoliation of graphene.