EN
In the years 1945–1949, there were at least 1,220 strikes in Poland, of which the majority – 73 % – took place in three voivodships: Lodzkie, Silesian and Krakow, and in two industries: mining and textiles – over 56 %. The article presents the socio-economic conditions of strikes, in particular the relationship between socio-demographic characteristics of the workers’ milieu and the intensity of strike actions. The responses of the political authorities and the security apparatus to the strike actions organized by the workers were also taken into account.