Abstract <p>An electrochemical method is proposed for the forming of contacts to high-temperature thermoelements with barrier layers based on refractory-metal alloys. The contacts are destined for thermoelements with operating temperatures up to 900 K. The barrier layers have specific resistance of no more than 15.3 × 10⁻⁸ Ω m and specific contact resistance of no more than 1.5 × 10⁻⁹ Ω m². The best results were obtained for barrier layers based on Mo–Ni alloy with a Mo content of 36.5 wt %. Ag films obtained by electrochemical deposition were used as a commutation layer in the contacts. The contacts were shown to be thermally stable at the limiting operating temperatures of the thermoelements and have an adhesive strength of at least 10.3&#xa0;MPa.</p>