Abstract: Increasing the proportion of high-alumina mineral powder in the mix is beneficial for enterprises to reduce costs and enhance their market competitiveness. However, an increase in the proportion of high-alumina mineral powder will inevitably affect the sintering process parameters and the quality of sintered ore. Therefore, clarifying the proportion and compatibility of high-alumina mineral powder provides a theoretical basis for steel enterprises to achieve low-cost smelting. Through micro-sintering tests and sintering cup tests, the sintering performance of superfine powder was studied. The results show that superfine powder has a low homogenization temperature, good fluidity index, and high strength of the bonding phase, and can be partially substituted for BRBF powder. Sintering cup experiments were conducted on the ore blending scheme with superfine powder. The results indicate that the proportion of superfine powder in the sintering mix should not exceed 30%, At this time, the drum strength and yield of the sintered ore are 65.28% and 81.79% respectively, which can meet the requirements for charging into the blast furnace.