Abstract:Currently, with the gradual realization of new types of combat weapons such as drone clusters, as their countermeasures, directional energy weapons such as high power microwave have attracted great attention. So far, major military powers, for example, in the United States and Europe, are all developing their high-power microwave technology and weapon equipment. Several kinds of high-power microwave weapons have completed demonstration verification, and gradually form combat equipment.In this paper,the research status and development tendency of high-power microwave were summarized from the aspects of key technology and weapons. In the aspect of high-power microwave technology, the development of pulsed power source, high-power microwave generation and high-power microwave radiation were emphatically introduced. In the aspect of microwave weapon, the characteristics of typical high-power microwave weapon were given. Finally, the developing trend of high-power microwave was summarized.