The Archives of The Wesleyan Church houses the official repository of historical documents for the Church worldwide. This includes documents of the Pilgrim Holiness Church and Wesleyan Methodist Church prior to their merger in June of 1968, as well as later additions from the Standard Church of Canada and the Evangelical Church.

Documents include General Conference and district conference minutes, local church histories and historical data from Wesleyan educational institutions. There are also biographies of founders and leaders of the denomination, as well as others who have been committed to evangelism, missions and social justice concerns. The missions arm of the Church provides a global perspective to the Archives collection documenting the growth and development of Wesleyan missions worldwide.

To provide greater access to the wealth of historical information in the archival collection, documents are now being digitized.