This system in order to ensure the normal operation of blast furnace top pressure, oxygen duct on line flow, mixed air temperature, air valve control loop control on PID, sprinkler valve, cut-off valve, accident nitrogen oxygen cutting valve, the nitrogen electromagnetic valve, electromagnetic valve, electromagnetic valve oxygen steam, cooling water electromagnetic valve, logic control, at the same time on the top, cooling water, steam drum pressure, gas, cooling water flow rate, the furnace body temperature of the drum, drum water level and other parameters are displayed, and the important parameters were recorded and alarm.