The phase equilibria in the system Tl‒Te‒I in the compositional range of TlI‒Tl₂TeI₆‒Te were investigated by using methods differential thermal analysis and X-ray analysis. A series of polythermal sections, as well as, a projection of the liquidus surface of the phase diagram were constructed. The primary crystallization fields of the phases, as well as, types and coordinates of non- and mono­va­riant equilibria were determined in the system. It was established, that the subsystem TlI‒Tl₂TeI₆‒Te is subordinate elementary triangle characterized by non- and monovariant monotectic and eutectic equilibria