The monograph examines the main problems of socio-cultural development of diasporas of Pavlodar region in 1937-2005: historical and theoretical aspects of the problem, ethno-demographic situation and trends of its change, legal aspects of interethnic relations, problems of preservation and development of cultural heritage of the people of Kazakhstan. The factual material can be used in writing works on historical demography, social and cultural history, a special course on the problems of socio-cultural development of the multinational republic. The textbook is intended for undergraduate and graduate students studying in the specialty "History", as well as all those interested in the problems of diasporology of Kazakhstan.