Today the museum is housed in several different buildings. The exhibition rooms are in the original Suur-Savo Museum building at Otavankatu 11, while the office, archives and some of the storage space are in the Mikkeli Art Museum building at Ristimäenkatu 5. The Suur-Savo Museum researches the history of Mikkeli and the Mikkeli region. The museum also collects and records relevant objects and photographs. The Suur-Savo Museum assembles 1-2 exhibitions annually in its exhibition rooms in Otavankatu, and occasionally elsewhere too.