Abstract: As high ratio of V-bearing titaniferous magnetite concentrate is used for the sintering feed in Sichuan Desheng Iron and Steel（Group）Company Ltd.,experiments were carried out at the laboratory to probe into the influence of Al₂O₃ on production yield and quality,reduction disintegration index at low temperature and mineral composition and microstructure of sinter.The results show that production yield,quality and reduction disintegration index at low temperature of sinter tend to downgrade with the increase of Al₂O₃ content.Considering the actuality of sintering feedstock and the production need of Sichuan Desheng Iron and Steel（Group）Company Ltd.,Al₂O₃ content in sinter must be kept within 3.2%.