Crystallization of 40%Na2О-60%SiО2-n%TiО2 (n = 1,5) glasses has been studied by high-temperature Raman spectroscopy at the temperature up to 1023 K. It is shown that narrow bands in a region of 950-1100 cm-1 are observed at heating of glasses. These bands are due to crystallization of sodium disilicate and metasilicate. Four bands appear in the region of 800-900 cm'1 in a glass with 5 % of Ti02. These bands are due to crystallization of titanium-containing phases. Crystalline phases formed at thermal treatment of glass with 1 % of Ti02 were investigated too. These phases were identified as Na2Si03, Na2Si205 and Na2TiSi05 by X-ray diffraction.