<p>Research on the recovery of tellurium resources from precious metal telluride ores is at the early stage, and the dissolution mechanism is still unclear. In this paper, the electrochemical reactions of tellurium and tellurides (AuTe₂ and Ag₂Te) in NaOH, Na₂S, and NaOH + Na₂S leaching systems were studied by cyclic voltammetry, and the electrochemical reactions of AuTe₂ and Ag₂Te in alkaline leaching systems were compared with the cyclic voltammetry of telluride and elemental tellurium. The results show that, in the alkaline leaching system, tellurium in AuTe₂ and Ag₂Te loses electrons to form Te, and Te continues to lose electrons to form TeO₃²⁻, accompanied by H₂ precipitation. When Na₂S is present in the solution, the free Ag + produced by Ag₂Te and S²⁻ form insoluble Ag₂S, and part of TeO₃²⁻ combines with S^2- to form TeS₃²⁻. Na₂S can reduce the corrosion potential, the activation energy, and the stability of metal ions in the electrode, while NaOH can increase the corrosion current value of the electrode, and the electrochemical activity of the electrode is better, and the electrode reaction is faster. This study provides theoretical basis and guiding significance for comprehensive recovery of tellurium from precious metal tellurides.</p>