In this work the synthesis, powder XRD and Mössbauer studies of the quasibinary system FeTe_1.45-TiTe_1.45 were carried out. A series of nonstoichiometric tellurides Fe_xTi_1-xTe_1.45 (x = 0.1, 0.2,...,1.0) was synthesized by the direct reaction from elements at 850°C. The Mössbauer results are in the good accordance with the XRD data. Behaviors lattice parameters and ⁵⁷Fe Mössbauer parameters from composition of the tellurides allow to make some conclusions about their compensation mechanism for nonstoichiometry (CMN). For both Fe_xTi_1-xTe_1.45, and nonstoichiometric Ti₃Te₄ CMN comes from the formation of Te-Te bonds at the constant metal valence. On the whole, in system titanium-tellurium CMN could be different and depends on the interval of composition.