Since its founding, the museum has gathered collections of sacred arts, portraits of Pomeranian nobility and XVIII-XX c. bourgeoisie. Also, collections of Pomeranian paintings, prints and drawings. Especially in ‘‘chojniciana‘‘ category from XIX – XX C. Museum has a valuable collection of graphic art and medallurgy made by Leon Stanisław Kawecki (1921-2000) – who was born in Chojnice but worked in the USA . Kazimierz Jasnoch, a student of Axentowicz, art collection is also displayed in the museum alongside with Pomerania and Kashubias landscape.