The Fondazione Fiera Milano Historical Archives preserve the history of Fiera di Milano with documents produced by Ente Fiera since 1920, the year of the first Trade Fair. The documents housed there measure more than one kilometer and include posters, photographs, catalogs, newspapers, books, video footage and various documents, that also explore the stories  of exhibiting companies, visitors, exhibitors and workers. The Archives were recognized to be of significant historical interest by the Superintendent of Archives for the Lombardy Regional Government in a note dated 1 February 2005.

Fondazione Fiera Milano has launched an entirely self-financed campaign of digitalisation and cataloguing of the Historical Archives photographic heritage.

The Historical Archives of Fondazione Fiera Milano are a partner in various initiatives: