▎ 摘　　要

NOVELTY - Producing graphene dispersed solution, comprises (a) passing a supply solution containing graphite via a high pressure homogenizer, and (b) treating the recovered supply solution with ozone. The high pressure homogenizer is provided with an inlet, an outlet, and a micro-channel having diameter of the micrometer scale, connected between the inlet and the outlet. USE - The method is useful for producing graphene dispersed solution (claimed). ADVANTAGE - The graphene dispersed solution has excellent water dispersibility of graphene and does not cause aggregation of graphene.