In order to obtain characteristics of single droplet deformation and breakage in a continuous and uniform air jet flow

the highspeed cameras were applied to measure the single droplet deformation and breakage. In the experimental conditions

experimental results show that: (1) The process of droplet deformation and breakage in the core/bag breakup regime is caused by the combination effects of liquidflow and external aerodynamics. It can be divided into umbrella-type breakup regime and dipper-type breakup regime. (2) The reduction of original diameters of droplet and the increase of airflow temperature could decrease the minimum requirements of aerodynamic force on the core/bag breakup. (3) The characteristic time of droplet breakup has a negative relationship with the aerodynamics

while its value and change gradient are both positively associated with the original droplet diameter. (4) The percentage of sub droplet quality raises with the increase of aerodynamics

but decreases with the increase of droplet original diameter.（5) The spatial dispersion of quality percentage of sub droplet increases with the rise of aerodynamics.