The author of the article, based on the study of the works of domestic and foreign scientists, generalized the study of the conceptual field of immigration. Indeed, over the past decades, Ukraine has become one of the largest suppliers of emigrants to Europe and the United States. At the same time, now the state policy of Ukraine is aimed at the development of immigration processes, which motivated the study of this phenomenon in the domestic science "Public Administration and Administration".The author also investigated the theoretical determination of the concept of "immigration", its characteristics according to various features: dynamics, scale and structure of immigration processes (the number of immigrants, their gender and age composition), factors of stimulating immigration, the characteristic features of the formation of the modern labor market and the directions of development of modern immigration processes.The author argues that many scientific works are devoted to the study of a wide range of issues of theoretical and applied aspects of labor migration. Recently, the issues of a comprehensive analysis of the current migration situation in Ukraine, assessment of the impact of migration on demographic and socio-economic development, forecasting migration of the population, ethnic composition of the population and factors of its dynamics have been studied. In connection with the annexation of the Autonomous Republic of Crimea, the military events in the East of Ukraine, which were caused by the aggressor country Russia (since 2014), the topic of not only internal migration of the Ukrainian population, but also the return of Donetsk residents from the CIS countries to Ukraine, has become relevant.The massive incidence of infectious coronavirus disease in humanity in 2020 posed new challenges to the government of Ukraine related to the immigration of our compatriots from foreign countries, which are introducing a strict quarantine regime amid the COVID-19 pandemic. According to the author, the study of the conceptual field and essential characteristics in the context of modernity is relevant, which determined the choice of the topic of the article.