To provide an electrode elevation control device capable of preventing breakage or abnormal consumption of the electrode in a simple structure.

The electrode elevation control device for a steel-making alternating-current arc furnace controlling elevation of electrodes 4a, 4b, 4c allocated to each phase by a speed control means having a prescribed arc impedance by supplying three-phase alternating current source; and generating arc between the electrodes of the respective phases and scraps 6 to melt the scraps 6; has a distance detecting means calculating a moving distance of the electrode position by using pulse signals from speed detectors 9a, 9b, 9c mounted on electrode elevation motors 8a, 8b, 8c, and finding the distance between the electrodes of the respective phases and the scraps. Indication of the speed or control parameter of a speed control means is made to change in compliance with the distance detected by the distance detecting means.