The article presents information on the distribution of some species of ferns at the territory of the Nakhchivan Autonomous Republic. The authors note that 10 species of plants are summed in 4 families and 7 genera which belong to ferns. In Aspleniaceae Newm. family it can be found 4 species in two genera in Pteridaceae Reichenb. There are two species in one genus. Data about the area of distribution of these species and their significance are provided in the article.