Abstract: The productivity of MAAG' gear grinding machine has been attracting the gaze of people over a long period of time. A good progress in raising the productivity of this type of machine has appeared in the theoretical research in the recent years. As a result, the working efficiency of this type of machine has greatly increased. The grinding without overrun technique applied in V-setting and H-setting for grinding wheel. In H-setting this method differs from the wellknow K-grinding method and Le Dui-qian grinding method is that the pitch block diameter is designed according to the reference circle, while in the K-grinding or Le Dui-qian grinding method the pitch block diameter is designed according to the base circle. The former has no profile form distortion created, ands the latter has profile form distortion which can only be compensated by B-mechanism. Therfore, this new method has the feature of high precision and ease to carry out.