In this paper, the study of the relationship between Colchis and Achaemenid Iran involved materials from settlement Sairkhe - the easternmost part of the ancient Colchis. As a result of archaeological study of the monument were found toreutics items and jewelry, indicating the existence of cultural and diplomatic contacts with the Achaemenid world. The architectural remains also found in this settlement may shed light on the political status of Colchis as a part of the Persian Empire.