This article explores the features of studying bilingualism. It should be noted that global socio-political and economic changes are expanding interethnic and international contacts. Hence, in modern conditions, the need naturally arises to further improve the teaching and learning of the Russian language in educational institutions and national groups of our country. The article deals with the problems of lexical and grammatical violations in the Russian speech of students - national groups, as well as the problem of the culture of Russian speech of Uzbek students in the modern world, which are one of the most pressing problems of modern linguistics. Proficiency in Russian as a means of international communication allows students to better master their specialty, because it makes access to all publications available on a wide variety of scientific and technical problems. When teaching the Russian language, there has always been a problem of the positive and negative influence of the native language on the language being studied. This problem remains relevant in modern linguistics. Its solution is important both from the point of view of theoretical and from the point of view of practical significance in the development of national-Russian bilingualism. Consequently, the consistency of the Russian and native languages is due to the consistency of the manifestation of interference at all levels of the language.
