Campanulaceae Juss. Family species spread in Nakhchivan Autonomous Republic have been thoroughly studied in 2012-2019 conducted researches. The presented article has been dedicated to the study of the nature of location of each species belonging to Campanulaceae family in a separate vegetation type, their spreading in the form of formations, associations and groups. Thus, during the studies it have been clarified that, 2 species [Campanula latifolia L., C. tridentata Scherb.] of family create formations and association groups. The presence of 6 species [C. glomerata L., C. rapunculoides L., C. bononiensis L., Asyneuma. amplexicaule (Willd.) Hand. - Mazz., A. campanuloides (Bieb. ex Sims) Bornm, A. rigidum (Willd.) A. Grossh.] Of family as an edificator species in meadow vegetation type have been found by us during the researches. During the study, the spreading of 2 species [Michauxia laevigata Vent. A. pulchellum (Fisch. ET C.A.Mey.) Bornm.] In mountain xerophytic vegetation type, and one of species [Campanula stevenii Bieb.] in steppe vegetation type have been found by us. During the studies it have been determined that, 9 species [C. sclerotricha Boiss., C. daralaghezica (Grossh).Kolak. et Serdj., C. zangezura (Lipsky) Kolak. et Serdj., C. bayerniana Rupr., C. coriaceae P.H. Davis, C. massalskyi Fomin, C. saxifraga Bieb., C. karakuschensis Grossh., C. propinqua Fisch. et C.A. Mey] of the family have been found in small microgroups or singly in the rocky and collapsed-sedimented subtype of petrophilous vegetation type.