Population reproduction, connected with the natural movement (births and
deaths), decides in the long period on the survival or the death of the society.
Indirectly, the reproduction level shows a society potential, its vitality and perspectives.
Basic data on the population reproduction level in Poland in years
1950—2007 are presented in the article. In this period a decrease in the reproduction
was generally observed up to very low size. The death reduction compensated
considerably the decrease of the deciding factor of changes — the fertility.