The improved grinding body is one stereo structure comprising two symmetrical truncated rectangular pyramids and with maximum cross section area in the middle part. It has great bulk density, good flowability, large grinding contact area, high grinding efficiency, shorten grinding period, low production power consumption, small grinding loss, less pollution to the ground matter, good application performance and wide application range. It may be used for grinding various matters inside grinding equipment in ceramic, cement, glass, chemical, medicine and other industry. |