Summary: The article describes the structure of Spanish archival work and the major national resources of its archival heritage. It was dissected the specific character of Spanish archival experience, the history and current state of archival institutions in Spain. It was investigated the methodological support, data structure, the state of information and documentary composition of the main state archives in Spain.

Keywords: Spanish archival science, the documentary resources of archival institutions, electronic resources of archival institutions, the state archival institutions in Spain.