Abstract:The probability of the medium striking the ore particle and the ore particle being ground both are very small during the process of grinding, which leads to low grinding efficiency and large energy consumption. However, selective grinding can effectively alleviate the problem of low efficiency of grinding, also can increase the processing capacity, reduce the production cost, and lower noise and so on. This paper analyzes the main influencing factors of selective grinding in detail and put forward the methods of how to improve the selective grinding, such as grinding aid, which could weaken particle agglomeration and improve slurry fluidity. Microwave-assisted grinding can selectively and efficiently heat certain minerals, thereby reducing their mechanical strength.