The museum collections include exhibits connected with the insurgents of the Greater Poland. An equally important part of the exhibition are the memorabilia related to General Dowbor-Muśnicki and his family, and particularly with his daughters Janina and Agnieszka who died in Katyń and Palmiry in 1940. The last part of the exhibition is related to the battles fought by soldiers of Greater Poland outside of Wielkopolska between 1919 and 1920, among others the Polish-Soviet war.