The ironmaking technology supports the development of the whole process flow of HBIS Group. Based on the basic idea of "Taking the blast furnaces as the center to ensure the long-term stable and smooth operation of blast furnaces", HBIS Group was committed to improving the utilization coefficient of blast furnace, increasing the coal ratio and reducing the fuel ratio of blast furnace. The gas utilization was improved by optimizing the burden distribution system. The reasonable adjustment of burden structure was taken to deal with the environmental protection production limit. The air supply parameters were explored to adapt to the change in raw fuel conditions. At the same time, the blast furnace longevity control technology had been explored, the new environmental protection technology had been developed, and the intelligent control level had been improved. Important breakthroughs had also been made in the smelting of vanadium-titanium ore, high-volume pellet smelting, flux pellets, and alkaline pellet production. Through the series of measures, the economic and technical indexes of various types of blast furnaces in HBIS Group had been continuously improved with remarkable results.