The influence of hydrogen on the electronic and structural properties of Nb_1-yFe_y alloys has been studied with ⁵⁷Fe Mössbauer spectroscopy and X-ray diffraction. No ability of hydrogen to creation of the ferromagnetic properties has been observed in this system. The results clearly indicate the b-NbH_0.85÷0.77 hydride formation in place of a-Nb phase. The quadrupole splitting and the isomer shift of the b-NbH_x subspectrum have been considered in terms of interaction between the interstitials and the Mössbauer atoms within the hydride phase.