The Museum collects and exhibits memorabilia associated with past and current military units and personnel from North Queensland, including a geographic area between Rockhampton in the south, extending north to Torres Strait and west to the Northern Territory border. The Collection extends from the establishment of the first defences at Townsville and Thursday Island until the present day.

Showcased within the Museum is a gallery displaying pre-federation Army and a gallery showing more recent conflicts of Vietnam and Korea, and the history of Sir John Lavarack and Lavarack Barracks. The Gallery also now houses World War I and World War II displays, including the Townsville Honour Boards from both these conflicts.