[en] The scheme of the ¹⁴⁹Gd → ¹⁴⁹Eu decay is proposed on the basis of the analysis of spectra of γ-rays, electrons of internal conversion, e-α and γ-γ coincidences and data on angular correlations. The Gd neutron-deficient nuclides are obtained in reaction of Ta and Er deep disintegration by proton of the 660 MeV energy. The targets are irradiated in the internal synchrocyclotron beam. Monoisotopic sources of ¹⁴⁹Gd were obtained by the electromagnetic mass-separator. The proposed scheme of ¹⁴⁹Gd decay includes 16 excited levels, of which the 869.01 and 1050.857 keV levels have been introduced for the first time. The scheme of ¹⁴⁹Eu levels is discussed. The half-life of the 149.7 keV level is Tsub(1/2)=(0.31+-0.02) ns. Information on nuclear transitions of ¹⁴⁹Eu and its comparison with literature data, as well as the states excited during ¹⁴⁹ Gd decay and the ways of their de-excitation are presented in tables