In order to solve the problem of poor surface quality in the non-circular isometric profile grinding， a theoretical model of X-C linkage grinding was established based on the constant removal rate. The ceramic CBN grinding wheel was used in the orthogonal experiments for high speed grinding of the three-arc non-circular isometric profile. The influences of the grinding wheel velocity， workpiece speed and grinding depth on the grinding specific energy， tangential grinding force， grinding temperature and surface roughness were investigated. The analysis shows that the grinding wheel velocity has the greatest influence on the tangential grinding force and surface topography， and the grinding depth has the greatest influence on the grinding specific energy， grinding temperature and surface roughness. No obvious grinding burn is detected by surface topography observation， which is proved that the method of X-C linkage grinding with the constant removal rate can be used for the non-circular isometric profile grinding.