According to the model of grinding heat transformation and material removal, a new method for grinding burning simulation prediction and control is proposed based on monitoring power signal. The grinding power signal can be monitored by computer to control the CNC infeed process parameters and the actual grinding power is kept at 5%~15% lower than the maximum power boundary to avoid grinding burn during roughing, semi-finishing, finishing and spark-out stage. And the effectiveness and practicability of this model are proved by the grinding experiment on the inner circle of bear rings.