The article analyzes material evidence of contacts of the nomadic and sedentary population of the Eastern Aral Sea region during the Middle Ages, which are known from written sources. The article is based on materials of archaeological research presented by Soviet scientists in the territory of the Eastern Aral Sea region. Comprehensive archaeological research of the monuments of Kesken-kujuk-kala, Khodja-kazgan 3, Kyz-Molla, Zangar-kala, Sarlitam-kala, Saikuduk-kala, Asanas, Khoja-Kazgan 1, Jan-kala (Jend), Murzaly, Kzay, Uigarak , Irkibay, Kum-kala 2, Martyk, Kos-tobe, Beshtam-kala and others on the whole confi rms the information of written sources that two cultural traditions coexisted on the territory of the Eastern Aral region – sedentary and nomadic. The nomadic tradition is a symbiosis of Oguzo-Kypchak elements, which is clearly manifested in the analysis of species, forms and ornaments of vessels