Abstract: Rubber hoses have excellent properties such as high temperature resistance, high pressure resistance, radiation resistance and corrosion resistance. They can be used for medium transportation, energy transfer and safety protection, and play an important role in nuclear power plants. The material selection, classification structure and performance requirements of rubber hose in nuclear power plant are analyzed, and the failure mechanism and aging evaluation method of hose in extreme environment are discussed. The research results provide detailed reference materials for rubber hoses, so as to promote the localization process of rubber hoses for nuclear power plants and ensure the safe and efficient operation of nuclear power plants.