[en] Three-particle resonance states of A = 6 nuclei are studied by the method of hyperspherical harmonics. The effective three-particle potentials for the T = 1 multiplet of A = 6 nuclei and the three-particle scattering phase shifts are analyzed, together with the results of the calculations -- the three-particle amplitudes, positions and widths of the resonances, and the resonance behavior of the wave functions in the internal and external regions. The characteristics of the three-particle resonances calculated in the modified Feshback approach are discussed. 23 refs., 6 figs., 4 tabs