Abstract: The main iron minerals of a high-phosphorus oolitic iron ore abroad are magnetite and he⁃ matite-limonite. The harmful impurity sulfur content is low，and the associated impurities silicon，alumi⁃ num and phosphorus content are high.In order to reduce the content of phosphate minerals in the high-phos⁃ phorus oolitic iron ore and throw out some tailings with high phosphorus content in advance，a multi-grade dry pre-selection test was carried out to explore the feasibility of pre-selection and discarding waste. At the same time，a stage grinding fineness test was carried out on the grinding process.The process of stage grind⁃ ing-low intensity magnetic separation of raw ore was determined by test. Finally，the iron concentrate with yield of 47.42%，iron grade of 64.45%，phosphorus grade of 0.501% and iron recovery of 53.19% was ob⁃ tained，which effectively reduced the phosphorus content in the iron concentrate and provided a reference for the rational development and utilization of the iron ore resources.

Key words: high phosphorus oolitic iron ore, grinding, low intensity magnetic separation, magnetite, hematite-limoniteore