Abstract: The scientific connotation and development courses of the comprehensive optimization of mining and mineral processing are discussed.The concept of the comprehensive optimization of mining and mineral processing is conducting comprehensive consideration of mining and mineral processing,to minimize the total costs of them.The key functions of computer simulation and analysis techniques in the comprehensive optimization of mining and mineral processing are analyzed in detail,and the functions and characteristics of the computer simulation and analysis techniques are discussed respectively.The influence regularities of blasting parameters to downstream grinding efficiency is summarized,it is show that the explosive unit consumption plas a key role,and the mechanical crushing and grinding efficiency can be affected by the bench height and explosive detonation velocity to some extent.Based on the above analysis results,the development trend of the comprehensive optimization of mining and mineral processing are discussed,it is indicated that important role in the further of the comprehensive optimization design of mining and mineral processing can be played bythe Internet of things and depth analysis technique of mass data.

Key words: Open-pit mine, Comprehensive of mining and mineral processing, Crushing substituted by blasting, Efficiency of crushing and grinding, Unite consumption