Abstract: There are some preconcentration process researches on several typical ilmenite ores by our institute.Aiming to the low grade primary ilmenite ore with the TiO₂ grade of 5.82% in Panzhihua, the gravity concentration should be used as the preconcentration technology, especially the cone concentration is used as the main gravity equipment, the 72.96% tailling can be discarded and the TiO₂ grade will be improved to 13.76%, and the ilmenite concentration can be got finally with TiO₂ grade of 47.45% and recovery of 41.51% by cleaner process.Aiming to the complex and difficult separation ilmenite ore with the theory TiO₂ grade of 47.92% in Shaanxi Province, the two stages high gradient magnetic separation (HGMS) is used as the preconcentration technology, the TiO₂ grade can be improved to 29.56%, the cleaner process will become simple, the ilmenite concentration can be got finally with TiO₂ grade of 47.23% and recovery of 45.25%.The Alluvial type primary ilmenite ore including lots of slurry and has high CaO and MgO in Yunnan Province, the magnetic and gravity combined process is used as preconcentration technology, the preconcentration product with TiO₂ grade of 48.46% and recovery of 45.89% can be got, which can be used as the finall ilmenite concentrate too.Gravity concentration and magnetic separation are green and environmental protection technology, and then the difficulty and environment effects of flotation or metallurgy can be reduced greatly by the suitable preconcentration process, so the purpose of green and efficient utilization kinds of ilmenite ores can be accomplished.