The reduction fusion of zinc cake are tested in the arc electric furnace capacity 100 kilovolt-ampere. The highest extraction of zinc in fumes (98 %), and copper, gold and silver in an iron alloy (90 %) is received at combined carboaliminothermal fusion of cake. Possibility of application of zinc concentrate as an sulphidizer at fusion of cake with transfer of copper, gold and silver in matte is shown.