Operating as Regina's Civic Museum, we have been preserving Regina's history for fifty years. It is the only museum with a mandate to collect materials related to the cultural, social, political and economic growth and development of the peoples of Regina. This is made possible through collecting, documenting, preserving and exhibiting artifacts and other heritage collections.

Early development of the Regina Plains Museum was initiated by the Regina Exhibition and the Regina and District Old Timers Association in 1958/59. Originally called the Plains Historical Museum Society, the Museum was incorporated in January of 1960. The Exhibition offered space under the Grandstand to store the growing collection and each year throughout fair week the artifacts were displayed with members of the Old Timers' Association sharing their memories and stories with visitors to the exhibition grounds.

Eventually however, the exhibition needed the space and the collection had to be relocated. The Laird building, an unused warehouse, was offered as a temporary space, however, the collection was stored there for the next ten years with no public access. During this time the Old Timers Association sought to secure a permanent home for the collection. Eventually, the City of Regina made available the fourth floor of what is often referred to as, the Old City Hall. Completed in 1980, a Director/Curator was hired and exhibits developed with the help of many dedicated volunteers.

In response to concerns of visibility and accessibility, the Regina Plains Museum adopted an extension programming format in 1999. Exhibits and programs were taken out into the community.

The downtown gallery and office space was relocated and featured changing exhibits. A resource centre was located in the museum space as well.