Abstract: This paper analyzes and discusses the relationship between grinding technology and equipment from the viewpoint of particle science. Material bed grinding equipment have roller mill and roller press in cement industry. After many years of research and development in China, it has become a mature technology. Cement and cement raw materials are granular materials, particle size characteristics control the properties of cement, therefore, it is not enough to study the properties of grinding products only from the characteristics of grinding equipment, but also through the point of view of particle science and powder technology to discuss the production control of material bed grinding.