Abstract:The threat of High Power Microwave ( HPM) weapons to electronicinformation systems is becoming more and more serious., On the basis of expounding thedamage effect of HPM weapon on electronic information system, this paper analyzes thedamage ways and modes of HPM weapon, puts forward the research hotspots of newtechnologies and new materials to deal with HPM weapon damage from the technical level.and puts forward the tactical measures to be strengthened to deal with HPM weapon damagefrom the tactical level, provides some reference for the development of new electronicinformation svstem and the selection of tactica protection measures in combat.