In the article there has been described the last taxonomic composition of the Campanulaceae Juss. family for the NAR flora. At the result of the carried out researches and fiction investigations there have been defined that serious changes have happened in the content of the family and some species have been shown as synonymous. So, for the Autonomous Republic there have been shown 20 species concerning to 3 genera within the family. Also, there have been determined the objective laws of spreading frequency and spreading degree of the Campanulaceae Juss. family in the lowland, mid-highland and highland zones of the NAR territory. During the researches only in one zone there were met 2 species[C. massalskyi Fomin, M. laevigata Vent.] in the mid-highland and 3 species [C. sclerotricha Boiss., C. tridentata Scherb., A. amplexicaule (Willd.) Hand. – Mazz.] in the highland. Besides these, there have been met 3 species [C. glomerata L., C. karakuschensis Grossh., C. propinqua Fisch. et. C.A Mey.] common for the lowlands and mid-highlands, 7 species [C. latifolia L., C. rapunculoides L., C. bononiensis L., C. zangezura (Lipsky) Kolak et Serdjukova, C. bayerniana Rupr., A. campanuloides (Bieb. ex Sims) Bornm., A. rigidum (Willd.)] common for the mid-highlands and highlands, 2 species [C. daralaghezica (Grossh.) Kolak. et Serdjukova, C. saxifraga Bieb.] common for the lowlands and highlands and 3 species [C. coriaceae P.H. Davis, C. stevenii Bieb., A. pulchellum (Fisch. et C.A. Mey.)]common for the all three zones. Spreading frequency of the species is different. The species of C. glomerata L., C. rapunculoides L., C. stevenii Bieb., A. pulchellum (Fisch. et C.A. Mey.), M. laevigata Vent. are met mostly. The gathered herbarium samples were included into the Bioresources Institute Herbarium Fund.