Micro-chemical engineering and technology is one of the frontiers in modern chemical engineering. The kinetics of droplet and bubble rupture in the microchannel is the basis and difficulty to determine the number of parallel microchannels in the multiphase process. The progress in dynamics of bubble and droplet breakup in microchannels will be summarized from the aspects of flow transition conditions for breakup

interfacial dynamics and size manipulation. The rupture behavior and influencing factors of bubbles and droplets in symmetrical microchannels

asymmetrical microchannels

microfluidic device with multi-level branching channels

bypass microchannels and microchannel with obstructed structure are discussed. The shortcomings of the related researches on bubble and droplet breakup behavior at microscale are pointed out

and the development direction in this field for the future is pointed out.