Abstract: The rapid development of science and technology brings convenience to people, but also brings a lot of harmful noise. In order to solve the problem of sound insulation and absorption of honeycomb sandwich composites, this paper reviews the research progress of honeycomb sandwich composites from four aspects: surface layer material, preparation method, optimization of sound absorption performance and application. Firstly, at present, the core layer materials of honeycomb sandwich composites include fiber reinforced composites, acoustic metamaterials and porous aerogels, and the surface materials include fiber reinforced composites, micro-perforated plates and thin-film acoustic metamaterials. Secondly, the preparation methods of honeycomb sandwich composites are mainly hot pressing forming method, vacuum assisted resin transfer forming method, interlocking method, 3D printing method and custom folding method. Finally, the research status of the sound absorption performance optimization of honeycomb sandwich composites is described from the aspects of cell shape and size optimization, honeycomb core filling optimization and multi-cell laminar optimization, and the main application fields of honeycomb sandwich composites are introduced. The research shows that the optimization of the sound absorption performance of the surface core materials with special acoustic properties and the honeycomb structure is still the focus of future research, and the research and development of low frequency and wide frequency sound insulation materials is the main challenge and research direction.