The invention discloses a method for producing graphene, which comprises the step that: graphite powder is subjected to wet ball milling in organic solvent, wherein the surface tension of the organic solvent is 30 to 45 mNm-1; and the surface of a milling ball used for the wet ball milling is wrapped with soft polymer. After adopting the scheme, the method selects and uses a ball milling process widely applied in the actual production to peel off graphite. Compared with the prior art, the method has the following advantages that: 1) the damage of rigid collision between the milling balls to the graphite crystal structure is effectively reduced by adopting the soft polymer to wrap the hard milling balls, meanwhile, the soft polymer has stronger friction force with the graphite so as to greatly improve the milling and peeling effects, and the yield of the graphene can reach 30 to 50 weight percent; 2) the adopted ball milling process is easier to expand the scale and implement industrialized production; 3) except little defect at the edge part, the graphene crystal structure is kept intact; and 4) the graphene product has even thickness which is kept between 1 and 2 carbon atom layers.