The new active metasurface has the advantages of small size, light weight and easy integration, so it has an important application prospect in weapon radar intelligent stealth. Based on this, focusing on the requirements of radar intelligent stealth for current weapons and equipment, this paper expounds the methods, approaches and performance advantages of active metasurface in electromagnetic wave regulation, reviews the development history of various active metasurface, and summarizes the research status and future development direction of active metasurface for radar intelligent stealth. It provides the relevant theoretical basis and design reference for the wide application of active metasurface in intelligent stealth of weapon equipment radar.