Abstract
The Kazaks of Western Siberia who are living in the border areas of Russia and Kazakhstan, were originally citizens of one state. Disintegration of the USSR changed territorially administrative border on interstate. The main aim of this paper to obtain current linguistic situation among Kazakhs of Western Siberia (Russia): they retain their language, bilingualism or assimilation kazakh language by russian language. The level of the Kazakh and Russian language knowledge by the Kazakhs of Western Siberia was considered through the age and the level of education parameters. The degree of use of the Kazakh or Russian language by the Kazakhs of Western Siberia was analyzed through the next spheres of communication: at work, with friends, neighbors, parents, spouse, children. Also we identified the language which respondents prefer to use when they watch and listen to TV, concerts and performances.