The experiment on dp non-mesonic breakup at Internal Target Station at Nuclotron is presented. Recent results on the study of the dp-breakup reaction with 300–500MeV unpolarized deuteron beam at Internal Target Station at Nuclotron are discussed. Selection procedure of useful events for the dp→ppndp→ppn reaction with the registration of two protons is shown. Further scientific program with polarized and unpolarized deuterons is discussed.