In order to promote the actual combat application of military powered exoskeleton, analyzes and summarizes the more mature military powered exoskeleton projects at home and abroad. This paper introduces the specific functions and application status of key technologies such as man-machine coupling, active control, machine drive, energy supply and new materials, and prospects the new technologies that may be beneficial to the development of exoskeleton system in the future according to military requirements. According to the actual combat needs, three battlefield applications of military powered exoskeleton are described, and its future development direction is prospected. The results show that the analysis can provide technical reference for the development of military powered exoskeleton in China.