Grinding equipment and grinding method thereof

The invention provides grinding equipment and a grinding method thereof. The grinding equipment comprises a grinding mechanism and a driving mechanism. The grinding mechanism comprises a first driving assembly and a grinding belt, and the first driving assembly is in transmission fit with the grinding belt. The driving mechanism comprises a second driving assembly and a sample placing piece, the sample placing piece is used for fixing a sample, and the second driving assembly is in transmission fit with the sample placing piece, so that the grinding belt can be in linear contact with the sample on the sample placing piece and grinds the sample. According to the grinding equipment, the fixing and sealing link is reduced, the influence of the fixing and sealing link on the sample preparation effect is eliminated, and the grinding effect and the grinding efficiency of the grinding equipment are improved. Besides, the moving direction of the grinding belt in contact with the sample is parallel to the grinding sur