Iron-chromium-aluminumAluminum alloys are widely used in aerospace, nuclear industry, and other fields due to their excellent high-temperatureTemperature oxidation resistance, corrosionCorrosion resistance, and radiation stability. In this paper, Fe2O3, Al2O3, and Cr2O3 were used as raw materials to conduct thermodynamic analysisThermodynamic analysis on the preparation of Fe–Cr–Al alloy by the molten saltMolten salt electro-deoxidation processProcess within the temperatureTemperature range of 973–1273 K. The results show that during the electrolysisElectrolysis processProcess, the O2− produced by the reductionReduction reaction at the cathode reacts with Ca2+ in the molten saltMolten salt to form CaFe2O4, CaCr2O4, and CaAl12O19. The first reductionReduction to occur in the reductionReduction processProcess is the reductionReduction of iron (Fe2O3/CaFe2O4 → Fe3O4 → FeO → Fe). Subsequently, the reductionReduction of chromium (Cr2O3/CaCr2O4 → Cr) is carried out, and finally the reductionReduction of aluminumAluminum (Al2O3/CaAl12O19 → Al) is conducted, ultimately forming the Fe–Cr–Al alloy.