Background. The relevance of this topic is due to the important role of region in question connected with the political and socio-economic life of the Golden Horde – the largest state formation in Eastern Europe and Western Siberia in the 13th – 14th centuries. This special role was due to the location of the Southern Urals in the very center of the Ulus of Jochi, which made it a link not only between the yurts subordinated to Batu and his descendants, but also between the Golden Horde and other parts of the Mongol Empire. Also, the need for a scientific examination of this problem is caused by the significant influence of the Horde dependence on the historical development of Russia. Some of the results obtained at the regional level can be extrapolated to the entire state, since the Mongols applied a certain set of measures in relation to various state formations. The latter varied because of local characteristics. In addition, the relevance of this topic can be explained by the fact that in modern scientific works the fact of the conquest of the South Urals by the Mongols is denied. Moreover, the influence of the Golden Horde on its development is belittled. The aim of the study is to study the process of the Southern Urals joining the Jochi ulus. Materials and methods. Sources on this issue should be divided into two large groups: written and archaeological. Among the first group should be highlighted the works of Western European and Eastern authors, Russian chronicles. Among the works of Western European authors the books of the Flemish monk Guillaume de Rubruk “Journey to the Eastern Countries”, the Franciscan monk Plano Carpini and the Dominican Julian of Hungary should be paid attention to. As for the eastern authors, Ata-Malik Juveini should be singled out. He wrote “The History of the World Conqueror”, “Collection of Chronicles” by Rashid- ad-Din. Furthermore, the work of the Khiva Khan Abul-Gazi “The Genealogical Tree of the Turks” is of great importance. Some information about the invasion of the Mongols into the South Urals can be found in the Laurentian Chronicle. Archaeological sources include the Golden Horde mausoleums, burials accompanied by implements (weapons, dishes, jewelry, coins, etc.). Thanks to these sources, we can obtain information about the ethnic picture that took place in the Southern Urals during the period under review, social stratification and economic ties. Results. We managed to compile the periodization of the conquest of the Southern Urals by the Mongols; on the basis of written sources, the features of each stage are highlighted. It was found out that the entry of the South Ural peoples into the Jochi ulus was a long process, since the first clashes of the Mongols with the Kipchaks and Bashkirs occurred at the beginning of the 13th century. It was established that the Kypchaks, who inhabited the steppes of the Southern Urals, were subjugated by the Mongols by 1225, and the Bashkirs – after the western campaign of 1236–1242. The problem connected with the place of the South Ural peoples in the ulus-yurt system of the Golden Horde is also considered. Conclusions. Thanks to the analysis of written sources, we were able to establish that, despite the fact that some peoples of the Southern Urals received certain administrative indulgences from the Mongols (for example, part of the Bashkirs received the right to have rulers from their own dynasty), this region became the part of the Golden Horde, having lost political independence. The presence of some elements of autonomy should be explained not by the nature of the entry of specific peoples into the Golden Horde (either voluntarily or with the help of weapons), but by the features of the landscape that allowed the Bashkirs to wage a long guerrilla war with the Mongols, which forced the latter to make certain concessions. The Kypchaks inhabiting the South Ural steppes could not offer longterm resistance to the Mongols and they were used by them against both the Bashkirs and Bulgars.