Micro-structured reactor (micro-reactor) is one of the core devices for micro-structured chemical system.Multiphase micro-reaction technology is important technical foundation for the enhancement of chemical engineering processes.In this review

the basic principles of micro-scale multiphase flow are reviewed

and the performance of micro-dispersion

micro-mass/heat transport and micro-mixing is presented.The characteristics and advantages of micro-reaction technology are summarized.Some typical multiphase micro-reaction processes are listed

and their enhancement of reaction results is discussed.The future development directions of micro-reaction technology are suggested based on the characteristics of micro-reactor.