Possibility of restoration of TiO2 in its lowest oxides and factors which define a valence state of the titanium in vitreous the titanium-boric systems was investigated. The major factors determining the valency of the titanium is its concentration in glass, a chemical composition of glass, temperature and oxidation-reduction conditions of melting. As a result of experiment obtained glasses in B2O3-TiO2-К2O and B2O3-TiO2-Na2O systems, where about 50 wt % of the general initial content of TiO2 are its lower oxides Ti2O3 and TiO.