The ball grinder is composed by the feeding device, discharging device, rotating device, transmitting device and some other components. it is widely used in cement, silicate products, new building materials, refractory, fertilizer, non-ferrous metal, glass ceramic and other industries. Used in grinding ball mill all kinds of ores and other materials, and is widely used in dressing, building materials and chemical industry. China Fote Machinery always adhere to the high starting point, high standard, high quality production concept.The ball mill grinding process is affected by many kinds of factors, and the factors influence each other, so the research of ball mill is very difficult. In order to improve the work efficiency of ball mill, the home and abroad scholars have done a lot of research in medium movement and obtained some achievements, but the results are not very satisfactory. In this paper, it carried out a detailed analysis of the working principle of ball mill and the mill ball movement forms through the theoretical analysis method. It draw the conclusion that the factors affecting working efficiency mainly include the ball mill turning speed, the steel ball diameter、gradation、fill ratio、ball mill liners and so on. Through they were reasonable improved, can effectively improve the work efficiency of the ball mill. Improving the ball mill grinding efficiency, reducing the energy consumption of the ball mill grinding process, not only can improve the ore dressing plant economic benefits, but also meet the current demand of energy saving and environment protection.We should pay attention to every detail, don"t pass a loophole, insist to the large-scale and highly efficient, reliable, the energy conservation development, and modern social electronic commerce rapid development, make China Fote Machinery ball mill made great achievement,magnet separator: http://www.fut-china.com/products/p-60.html