Abstract: With the rapid development of detection technology and the demand for operational performance, higher requirements have been put forward for radar stealth technology, honeycomb sandwich structure as a classical structural wave-absorbing material has made great development in recent years, this paper aims to comprehensively analyse and summarize the characteristics, research status and application of honeycomb sandwich structure composites in the field of wave-absorbing stealth technology at home and abroad. This paper focuses on the key factors affecting the wave-absorbing performance of honeycomb sandwich structures, including the performance of absorbers, the design of honeycomb structures and the wave-transparent performance of skins, etc. It also analyses the advantages and disadvantages of different honeycomb sandwich structure wave-absorbing materials with respect to the key indexes of wave-absorbing bandwidth and absorption rate. In addition, this paper summarises the current development trend of honeycomb sandwich structure wave-absorbing stealth composites, summarises the current status of development, and gives an outlook on the future development direction.