Abstract: With basic material -85% first grade magnesia + 15% graphite, adding % Al/Mg(60/40)antioxidant, using solid and liquid phenolic resin as binder and making up according to reasonable grain grading, the magnesia-carbon taphole brick for two sets of 60 t ulra-high power electric arc furnace(UHP EAF)at Fushun Special Steel has been developed and was in service.The service life of taphole of developed brick increased to about 150 heats from original about 110 heats