Abstract: In the field of mechanical manufacturing, grinding is usually the last working procedure of mechanical parts because of its irreplaceable advantages. However, vibration often appears in the grinding process, which makes the grinding vibration pattern become the main obstacle to improve the surface quality of parts. Therefore, this paper introduces the unbalance of the revolving body and the grinding wheel, the grinding vibration and the balance precision of the grinding wheel based on the experience of grinding engineering application, the threshold ranges of grinding wheel balance corresponding to different grinding modes are given. The parameters of grinding wheel balance, the factors affecting grinding wheel unbalance and the testing technology of grinding wheel balance are analyzed. The purpose of this paper is to provide some technical support for related technicians to better understand the balance of grinding wheel so as to improve the vibration problem in grinding engineering.