Rotor parts balance correction is usually in the region of the rotor center of gravity to de-correction after dynamic balancing testing. Due to the weight loss of traditional drilling or milling, its quality can not be controlled precisely, resulting in low balance accuracy and low productivity. In order to solve the above technical problems, based on the idea of prefabricated balance hole, a new method for precision calibration of weight gain is proposed. Namely, in the process of rotor design and manufacturing, the N circle uniform balance hole was set up on the rotor in advance, then, two balancing holes for the counterweight were determined after dynamic balance test, and the mass of the two counterweights were calculated by the equation of plane equilibrium force system. Finally, the counterweights by accurately balance weighed, were assembled into two counterweight holes. The method only needs precision weighing a restructuring to complete the rotor precision balance calibration without going heavy for drilling or milling again. Furthermore, Rotor balance correction is easy to implement quantitative production. The effect is proved to be obvious through the high-speed superhard abrasive grinding wheel balance calibration test.