[en] A deuteron-proton scattering experiment, 195 MeV incident energy, was carried out from 15.4deg to 164.3deg by RCNP. The differential cross section and vector polarization resolving power were determined. The results were compared with the theoretical calculation with three-body force effects. The differential cross section and the vector polarization resolving power of the structure at about 120deg was not explained by the two-body force, but they showed remarkable three-body force effects. The results were compared with 95 MeV nd reported by Upsala group, and the angular distribution structure was different from them. Introduction and experiment are described. (S.Y.)