Sulfur dioxide is one of the serious pollutants emitted from iron and steel enterprises, the desulfurization from sintering flue gas is inevitable in the steel industry. Some recommendations are proposed based on the classifying, comparing and researching of the desulfurization processes in the market, and also the sintering flue gas desulfurization process of Jingtang Steel. These recommendations provide references for iron and steel enterprises tochoice the desulfurization processes of sintering flue gas.