Demographic values of longevity have been calculated on the basis of population census data and mortality tables. Analysis of the present-day level of longevity in Siberia and Far East and its time course in 1979-1993 is presented. Regular reduction of longevity parameters from West to East and lower values of these parameters in comparison with the rest of Russia have been revealed. Negative shifts in the levels of longevity over the period of 1979 to 1993 have been observed for all regions of Siberia and Far East.