An apparatus and a method for manufacturing graphene are provided. The apparatus includes a reaction chamber with a reaction space for performing chemical vapor deposition (CVD), a mold unit connected to the reaction chamber and a driving unit connected to the mold unit to rotate the mold unit relative to the reaction chamber. The mold unit includes a mold body that is disposed in the reaction space, is rotatable relative to the reaction chamber, and having an outer surface on which a graphene structure is to be formed.