The collection is based on materials presented at the International Scientific Conference "Archaeological Heritage of the Caucasus: Topical Problems of Study and Preservation" - XXXI Krupnov readings dedicated to the memory of the outstanding Caucasian scientist, archaeologist, doctor of historical sciences, professor Evgeny Ignatievich Krupnov (1904-1970). The topics of the reports reflect the wide range of archaeological research carried out, covering the chronological range from the Stone Age to the late Middle Ages.