The invention relates to a technological method for improving the quality of vanadium-titanium iron concentrates. Various techniques are integrated. The technological method includes preliminary classification, fine screening classification, three-section ore grinding, concentration magnetic separation and stair magnetic separation. In preliminary classification, a qualified fraction part good indissociation in rough iron concentrates can be effectively classified out, the treatment capability of a mill is improved, and energy consumption of the product is lowered. In fine screening classification, a fine screening closed loop is adopted for cyclic ore grinding, compared with common rotational flow classification, classification is conducted strictly according to the particle size, meanwhile, the classification efficiency reaches up to 70% or higher, the qualified fraction is better classified out in time, excessive grinding is reduced, and cyclic loads are reduced. In concentration magnetic separation, concentration magnetic section is adopted before ore grinding, part of weak magnetic titanium ore and gangue can be removed out, excessive grinding of the titanium ore is reduced,and the titanium iron ore recycling rate is increased; and meanwhile, the ground ore grade is improved, the yield is increased, and the product cost is reduced. In stair magnetic separation, iron andtitanium separation is well achieved, and the iron concentrate grade is improved step by step.