The study provides a comprehensive data analysis on total fertility rates, birth rates, life expectancy, percentage share of over 65 year olds, infant mortality rates and adolescent-specific fertility rates, in Russia and Serbia, two decades after the fall of communism and compares it with general values in Europe. The main problems in the demography of Russia and Serbia are connected with economic process, caused by economy transition, from planned economy to the free market, as one of the consequences of the fall. Finally, the authors concluded that the Russian demographic situation is characterized by depopulation processes just like in Serbia