对重钢三烧条件下影响烧结矿FeO的因素进行了分析。找出了降低烧结矿FeO的技术途径，并结合现实条件实施了降低烧结矿FeO的措施，取得了良好的效果． The factors affecting the FeO of sinter were analyzed under the conditions of the heavy steel and the third burning. The technical ways to reduce the FeO of sinter were found, and the measures to reduce the FeO of sinter were implemented according to the actual conditions, and good results were obtained.