Polymer damper reinforcing sheet has excellent vibration and noise reduction effect, which can quickly eliminate the vibration wave and noise caused by vibration and shock. The product is non-toxic, tasteless, harmless volatile components, non-corrosive, and is a typical green environmental protection product. For the high-speed railway carriage manufacturing industry, it is also known as the carriage shock absorber, the carriage damper, the carriage noise and vibration reduction reinforcement materials. This product is a kind of gray-black sheet material. It is a high-tech damping material refined by a unique process. It is an ideal sound insulation and noise reduction material for car floor, car body and track.