Abstract: The technological process of two-stage-one closed circuit crushing + high pressure roller mill + ball mill crushing is applied in a concentrator, which has the characteristics of long process flow, many equipment and complex working environment. In the actual production process, whether it is fine ore feeding control, or high-pressure roller mill automatic control, as well as powder ore bin distribution process needs manual operation in the field, crushing process environment is bad, dust and noise pollution threaten the health of operators. Aiming at the above problems, an intelligent grinding control system with advanced technology and equipment, high automation and stable and reliable operation is designed and constructed to realize one-button setting of crushing capacity, intelligent adjustment of the whole factors of crushing production equipment, linkage of medium-fine crushing and high-pressure roller mill, automatic stabilization of production targets, effective guarantee of process stability and production targets greatly improved, and effectively optimize the allocation of personnel, improve the working environment, reduce labor intensity and reduce occupational health hazards.