- To promote the study of archaeology, architecture and history in Bletchley and district
- To protect and preserve buildings, sites, records and objects of historic interest
- To conduct and promote research into local history.
The Society organises monthly lectures, outings to places of interest and issues a newsletter.
In the 1960s the Society successfully campaigned for the preservation of Rectory Cottages, a rare secular example of a medieval hammer-beam roofed hall built c.1475. In the 1990s the Society worked to preserve Bletchley Park.
From time to time the Society undertakes a local history project or participates in a communal one. Several members are engaged in individual research and in building up a collection of slides of old photographs.
The monthly lectures are held in Rectory Cottages on the first Thursday of the month between October and May.