Abstract: The iron and steel industry ranks first in terms of carbon emissions in the industrial sector.The blast furnace process has the highest carbon emissions, which is the carbon emission reduction bot⁃tleneck of the steel industry. The blast furnace gas circulation coupled with carbon capture technology isan important way to achieve carbon emission reduction in blast furnace, which can realize the resourceutilization of top gas while reducing carbon emissions and achieve the purpose of energy saving and e⁃mission reduction. The impact of gas circulation coupled with carbon capture on blast furnace smeltingis introduced, and the oxygen-rich blast furnace smelting process with gas circulation as the main fea⁃ture is presented. The article reviews the mature chemical absorption method and variable pressure ad⁃sorption method of blast furnace carbon capture technology in industrial applications, and points outthat coupling gas circulation and carbon capture is more beneficial to blast furnace smelting. In the de⁃veloped gas cycle coupled carbon capture application, the coupling of the two technologies can reducethe blast furnace carbon emission by 20% ~ 40%. Future research should focus on the change ofreaction mechanism in the blast furnace during the gas cycle, and the development of low-energy car⁃bon capture materials applicable to blast furnace gas. It is also great significance to actively promotingthe industrial application of this technology.