The mission of the Musée Royal 22e Régiment is to acquire, conserve, and showcase artifacts and historical documents that recount of the history and values of the Royal 22e Régiment as well the Citadelle of Québec and place them in the context of Canadian military history.
Further, through promotion and education, visitors are made aware of the Regiment's military feats and its history in Quebec, Canada, and abroad, the story of the Citadelle back to the French Regime and explains the historical functions of existing Citadel buildings.