Abstract: With high high-temperature hardness and contact fatigue strength as well as good abrasion resistance, high-temperature steel has been widely used to produce the main axle bearings for aero engines to prolong their life and improve their performance. several times of failure have taken place to a kind of bearings during service, and the failure mode is that the raceway surface of the bearing ring peeled off. It is assumed that the grinding burn layer on the surface of the raceway is the main cause of the surface peeling off. The control technology of grinding burn of high temperature steel bearing ring raceway was studied, the process method for coarse grinding and fine finish grinding was fixed, and a reasonable grinding process for high temperature steel bearing ring was establish. As a result, the grinding quality of the surface of the raceway was steadily controlled to avoid grinding burn so that such failure can be avoided and the life and reliability of the bearing can be improved.