[en] The magnetic properties were studied with a vibration magnetometer over the 4.2-300 k range at magnetic field strengths up to 8.10₅ A/m. The investigation showed that TiU₂S₅ is antiferromagnetic with temperature of 25 K, while ZrU₂S₅ and HFU₂S₅ are ferromagnetic with temperature equal to 65 and 180 K respectively. It is presumed that in ZrU₂S₅ and HFU₂S₅ domains with narrow boundaries are present. In weak fields and at low temperature these domains are stationary. The antiferromagnetism of TiU₂S₅ is evidently related to a substantial reorganization of band structure and a change in the density of states at the Fermi surface