This article represents an analysis of linguistic and non-linguistic factors determining the degree of the transformation of the Tatar bilinguals’ (living on the territory of the Republic of Tatarstan) discourse. Having applied descriptive, statistic and contrastive methods and also one of introspection, we came to the conclusion that some of the factors namely the high proficiency in the Russian language, high social status of Russian and its domination in social and professional life of the Republic of Tatarstan, ageing of an average active Tatar speaker – for young Tatar speakers Tatar plays status role rather than instrumental one, it is predominantly used within family circle, more rarely within friends circle. As a counterweight,
there is a considerable difference between systemic and structural features of the languages, pragmatic settings of Russians and Tatars and also the language policy of the Tatar language development and conservation that is held by the government of the Republic of Tatarstan