We studied the possibility of using electrochemical methods for the extraction of metals from dead catalysts, based on the example of the platinum-group metals. Leaching of palladium and platinum was carried out in a solution with sodium hydroxide applying a sulphur graphite electrode, which served as a source of formation of leaching reagents (sodium thio-compounds). The reactions of the formation of leaching reagents and transfer of metals into the solution were performed simultaneously in the volume of a reaction vessel.