EN
The aim of this paper is to present the directions of changes in the Polish social insurance system in the years 1919–2017. The article presents the origin and development of Polish social insurance in the interwar period, the fate of that insurance during German occupation (1939–1945), and the development of solutions in the field of post-World War II insurance, divided into period of Polish People’s Republic and time after socio-economic and political transformation from 1989. In the paper, particular attention was paid to the issues of the subjective scope of the social insurance system, the scope of insurance coverage implemented, as well as organizational and financial aspects of its functioning.