The corrosionCelectrochemical behavior of copper-based alloys (L63, Cu-Ni-Zn alloy, monel and Cu-Al) in high-temperature salt electrolytes of various compositions in the galvanostatic mode was studied. The most promising copper-based alloy for producing nanoporous and mesoporous materials in salt melts is brass L63; the smallest average pore size had samples of brass L63 in experiments with chloride melt; in the galvanostatic mode, the pore size was 500 nm (under specified conditions 200 A/m2, 350°C); The results of cyclic voltammetry can be used to predict the nature of electrochemical destruction and analysis of the stages of conjugate anode processes. It was found that the nature of the second component of the alloy affects the nature of electrochemical destruction and the formation of a developed surface layer of the studied alloys.