This paper presents the result of researches on the segetal vegetation of the Sulejów Nature Park. In the area of research, 10 segetal associations - 5 of the Secalietea class and 5 of the Chenopodietea - have been found. Among them following ones are quite interesting: Caucalido-Scandicetum, Lamio-Veronicetum politae and Bilderdykio-Lamietum amplexicaule.