At the present time, the common classification of geophysical maps is missing, which is a consequence of their long-term development of the geological mapping. The features of existing approaches to the definition of geophysical maps’ place among maps of natural phenomena and the limitations of existing lists of mapping themes were determined and identified in this article. New approaches to the classification of geophysical maps that take into account the completeness of their contents and the current state of geophysical mapping were offered. A new classification of geophysical maps was elaborated based on four criteria: the type of field, the origin of field, the assignment of mapped field to the parts of geosphere, the degree of applied geophysical data processing. To ensure uniquely identification was carried coding of geophysical maps. The reference-search system was created to automated search of maps set depending on the combination of each classification values, selected by the user.