Abstract: Jet mill technology is an important technical means for the processing of micronano powder.The research can effectively improve the utilization rate of resources.The article expounds the jet mill smashing technology basic theory in the study of classical theory,the research progress in the basic theory of computer simulation optimization,airflow pulverization technology in the field of mining and metallurgy,biological research progress of application of horizontal disc type (flat) jet mill,circular tube type jet mill,the spray type jet mill,the target type jet mill,fluidized bed jet mill's basic structure,working principle and research status;At last,it is pointed out that the main problem of air flow comminution technology is low energy utilization rate,and the research direction of air flow comminution technology in the future is prospected.

Key words: superfine crushing, jet mill, theory, equipment, powder