In order to further broaden the source of pellet raw materials and improve the quality of pellets，based on the analysis of the physicochemical properties and ore phase characteristics of an Indian iron ore fine with an iron ore grade of 62. 42% and a SiO2 mass fraction of 3. 30% ，the optimization of the process parameters of iron component recovery under different physical beneficiation methods is carried out，and the appropriate grinding and upgrading process is determined. The results show that the optimal upgrading process of the iron ore fine is as follows: first，the raw ore is washed and screened to obtain two coarse and fine particle sizes ( ＞ 0. 1，＜ 0. 1 mm) ore fine，among which，the coarse particle size adopts the “one coarse and one fine”process of wet grinding and high gradient magnetic separation，and the fine particle size adopts the“one coarse and one scan”process of high gradient magnetic separation. Among the two kinds of iron ore concentrate products ( 1^# and 2^# ) ，the iron grade of 1# concentrate is 65. 97% ，the yield is 23. 29% ，and the operation recovery rate is 24. 62% ，and the iron grade of 2^# concentrate is 62. 06% ，the yield is 72. 89% ，the operation recovery rate is 72. 52% ，and the recovery rate of the whole process iron is 97. 14%. The separation of a certain proportion of high-grade iron ore concentrate from ordinary iron ore fine is expected to be used for direct reduced iron ( DRI) production，and other parts except iron concentrate can still be used as ordinary pellets and sintering raw materials，achieving tailless and efficient utilization