The article presents the results of studying the collection of belt sets from the burials of the Bulan-Koby culture necropolis of Choburak-I, completely excavated by the expedition of Altai State University. This site is located in the Chemal district of the Altai Republic, on the right bank of the Katun river. The published materials come from eleven undisturbed objects. The analyzed series is represented by iron objects: 17 buckles, 90 plaques, four tips, one distributor, five “blocks”, 14 fasteners. They find numerous analogies in the burial complexes of the Bulan-Koby culture of Altai in the 2nd – 5th centuries AD. A comparative study of the morphological features of the preserved metal parts made it possible to determine their relative chronology within the designated period. The study of the mutual occurrence of fixed categories of equipment became the basis for identifying several types of typesetting belts found in six burials. It has been established that the difference in the qualitative and quantitative composition of the belt sets is not related to the age and social status of the deceased men and, apparently, reflects the personal preferences of their owners. Belts from the graves of women, a teenager and a child were equipped with a minimum number of elements. The considered products demonstrate the variability in the design of belts by the population of the Northern Altai in the Rouran period. Archaeological data from the excavations of the Choburak-I site confirm the previously identified trends in the evolution of the equipment of the population of Altai at the turn of late antiquity and the early Middle Ages.