A method of recovering a valuable metal from an oxide-based scrap, characterized by using an insoluble electrode as an anode, using the oxide-based scrap as a cathode, and conducting electrolysis to recover the cathode scrap in the form of metal or suboxide.Thus, a valuable metal is efficiently recovered from an oxide-based scrap, e.g., a sputtering target made of indium-tin oxide (ITO) or fragments resulting from production.