Offshore wind turbine pile foundation damping structure

The invention relates to the technical field of offshore wind power generation, and particularly relates to an offshore wind turbine pile foundation damping structure. The offshore wind turbine pile foundation damping structure comprises a pile body and a first damping assembly arranged on the pile body, wherein the first damping assembly comprises a first annular energy absorption barrel, a second annular energy absorption barrel, a third annular energy absorption barrel and an energy dissipation sleeve; the circumferential inner wall of the third annular energy absorption barrel is in sliding fit with the pile body; damping media are arranged in inner cavities of the first annular energy absorption barrel, the second annular energy absorption barrel and the third annular energy absorption barrel; the circumferential inner wall of the energy dissipation sleeve is connected with a third lock hole in a locked manner; and energy dissipation blades are arranged on the circumferential outer wall of the energy dis