From the point of view of historical development, it can be seen that the lexical layer of the Uzbek language was strongly influenced by Persian-Tajik, Arabic, Russian and other languages, all of which were influenced by non-linguistic factors. In history, culture, material and spiritual life, the rapprochement and connection of peoples, although they are extluvistic factors, actively influence the development and interference of language. This article describes the linguistic and cultural ties between the peoples of ancient Turkestan living in Central Asia and their impact on the development of the Uzbek language and the linguistic situation in our country. The article analyzes all these issues in the article "Language issue" by the famous enlightener Mahmudhoja Behbudi and the works of the famous bilingual writer Sadriddin Aini, who laid the foundation of Uzbek and Tajik literature.