There are different definitions of map. There is no one which is accepted in whole world or at least from the most cartographers. In the paper it will be given several definitions which are, at the best way, (according to the author’s opinion) reflecting essence of map as a model of reality. Map as a universal meaning of researching can’t serve only for representing particular geospace (spatial system) or some its element, or to give only clear view about geographical dispersion of objects, phenomena and processes, but have to make possible studying the patterns of that dispersion, as well as their mutual connections and conditions.