Abstract: Micro- oxygenation is the process of deliberately introducing minute,measured amounts of oxygen into wines to simulate the aging in the oak barrel.It can reduce not only production cycle,but also production costs.In this review,on a basis of the brief introduction of micro- oxygenation equipment and its operating principle,the major influence factor and the monitoring of wine during micro- oxygenation were systematically summarized,in order to highlight the new insight in the application of micro- oxygenation during wine aging.