The invention discloses an energy absorption method, which is characterized in that a dynamic polymer having dynamic covalent cross-linking and optional supramolecular hydrogen bond action is used asan energy absorbing material for energy absorption, wherein the dynamic covalent cross-linking is based on at least a reversible addition cleavage chain transfer dynamic covalent bond. According to the present invention, the dynamic polymer completely uses the characteristics of the dynamic covalent bond, such that the polymer has a certain strength and a certain stability; the dynamic covalent bond has strong dynamic reversibility under a certain condition, such that the dynamic polymer has characteristics of energy dissipating, dispersing and energy absorbing, can be used as the energy absorbing material so as to provide functions of good damping, good shock absorption, good sound insulation, good noise reduction, good impact resistance and the like, and can be especially used in body protection in sports and daily life and work, military and police body protection, explosion prevention, bullet prevention, airborne protection, airdrop protection, vehicle collision prevention, anti-impact protection of electronic and electrical products, and other fields.