Based on the constant removal rate method, the mathematical model of the cam grinding is built. Through analyzing the cam's grinding model, the constraints of cam's driver, some system's parameters are obtained, such as the slow-down ratio of workpiece, and the maximal speed, the maximal acceleration and the maximal differential acceleration of the wheel's horizontal feed. A control method of the grinding wheel's feed speed is proposed. The forward and reverse interpolation point can be dynamic solved to me...