The article is devoted to problems of internal migration in modern Russian society. Describes the basic approaches to understanding the phenomenon of migration in the Russian sociological science, provides copyright definition of migration. The results of sociological research, carried out in the city of Belgorod on the influx of migrants. Analyzing the factors of the Immigration Appeal of the big city, the problems of migrants are sending a territorial mobility of the population, especially the relocation of conduct, as well as the level of the young migrants to a new location.