The concept of multiculturalism is used in many fields of human activity – politics, philosophy, cultural studies, sociology, history, as well as literature. As applied to the Russian-language literature of Kazakhstan, the concept of multiculturalism helps to explain how openness to the stranger helps the establishment of the national identity of Kazakh authors writing in Russian. The subject matter of this paper is the reflection of multiculturalism in the works of Zhanatalap Nurkenov, Viktor Semeryanov, and Bakhytzhan Kanapyanov as the poets of the Pavlodar Irtysh land. The leading research methods are empirical, theoretical, and biographical. In this study, the peculiarities of the process of rapprochement of peoples and subsequent extensive interaction of the works of literature on the territory of the Pavlodar Irtysh land were investigated. Moreover, new forms of expression of the creative thought of poets, such as using foreign-language vocabulary, linguocultural concepts, and images were discovered. Also, the interconnection of nationalities in the works of Russian-speaking poets is characterized by the priority of spiritual values.