This paper introduces the technical innovation of Shougang Jingtang Steel Plant 5500m³ blast furnace BSK dome combustion hot stove. Ultra large dome combustion hot blast stove optimum technical process is integrated; high temperature 2 stage preheating technology of combustion air and dome combustion hot stove high-efficiency ceramic burner are developed; according to the characteristics of dome combustion hot blast stove, the rational structure of dome and ceramic burner are designed; high efficiency checker brick is adopted, the thermal specification and structure of regenerator are optimized; reasonable hot blast stove checker heating surface is determined. Hot blast stove proper lining design is optimized; the effective technical measures for hot blast stove shell inter-crystalline stress corrosion prevention is applied. According to the thermal conduction calculation of regenerator suitable hot blast stove refractory is configured; the refractory technical performance is improved additionally. Refractory structure design of hot blast pipe system is improved in order to meet the requirement of 1300 ℃ blast temperature. Blast temperature of design level is reached to 1300 ℃ monthly after blast furnace blow in.