Abstract: Rail grinding is the main technology to maintain the rail.Compared with normal grinding,rail grinding requires special performance on the grinding wheel.Based on the working condition of rail grinding vehicle,we set a group of parameters and test different grinding wheels to select one to meet the requirements.Research results show that resin bond mixed corundum wheel has good durability and slight adhesions on the wheel surface;high porosity vitrified bond corundum wheel has good comprehensive performance of efficiency and durability;vitrified bond microcrystalline corundum wheel has good self-sharpening performance,high efficiency but poor wear resistance.