Abstract: The article characterizes the goals and the structure of a database which aims at accumulating data of the First General 1897 Population Census of the Russian Empire preserved by Russian and foreign archives. The database has two basic data input and data retention modules “Archive” and “Finding Aid”. The first module realizes the idea about the hierarchical level structure preservation characteristic of archival storage system (archive – fund – series – file – document). The second module reflects the search history that is data on archival reference books, information about electronic copies of archival reference books and documents as well as their access conditions. The interarchive database is a result of archive, document and source analysis both of archival fund documents and their finding aid. The author considers the idea to create such a system based on the First General Population Census of the Russian Empire new for Russian historical studies. A user is provided with an opportunity to carry out a search (online as well) by archives, funds, files, document types as well as administrative units with account of both to historical and present day names.