Handan Iron and Steel iron has substantially adjusted fuel structure, with a large number of lowcost materials, coke ash and sulfur content and low grade ore since 2011, to adapt to the situation in the steel market. In order to adapt to the changes of raw fuel, Hanbao Ironworks which has two 3200m³ blast furnace had changed operation philosophy. BF bosh gas index and BF air resistance coefficient were used to guide the furnace operation. The furnace condition was maintained a long-term stable operation. Economic and technical indexes greatly increased.