Ballistic target detection and recognition is one of the core difficult problems of Space-Based Infrared System (SBIRS).Aiming at the problem of detection and recognition of boost-phase ballistic target,the traditional methods based on spatial and temporal characteristic information were analyzed,and the disadvantages of the methods were pointed out.According to the consistency of the target radiation in spatial dimension and spectral dimension,an integrated method for ballistic target detection and recognition was put forward based on imaging spectral technology,in which integrated treatment was made for target detection and recognition in spectral domain spectral domain.Experiment results show that this method can obtain good result toward low SNR infrared image sequence under complex background,the algorithm has high detection probability,low false-alarm probability and fine real-time performance.