The invention belongs to the field of paint preparation and in particular relates to high-performance antifouling paint. The high-performance antifouling paint comprises components of epoxy resin, graphene, a curing agent, a cosolvent and a mixed solvent. The cosolvent is compound with a molecular structure in a star shape, improves dispersion of unmodified graphene in the components of the paint, solves the problem of complex work procedures caused by pretreating and modifying the graphene and brings higher antiseptic performance and antifouling performance to the paint.