The study consonants in Azerbaijani linguistics began in the first half of the 20 century, many issues related to the statistical physiologically-acoustic, phonological analysis of consonants have been solved. In this regard, of particular importance are studies of B.Chobanzade, F.Kazymova, A.Demirchizade, A.Kurbanova and especially of A. Akhundov. After analyzing the work on phonetics and phonology of the Azerbaijani language, the author came to the conclusion that more questions were studied concerning phonetics of consonants.