The invention provides a plunge pool structure. The plunge pool structure comprises a dam, a water tongue is arranged on one side of the dam, and the water tongue is located on the ground surface line; a concrete foot and plunge pool excavation boundaries are arranged under the water tongue, and the concrete foot and the plunge pool excavation boundaries are located under the ground surface line; one side of the concrete foot is connected with the water tongue, and the other end of the concrete foot is connected with a dam foot of the dam; one side of a plunge pool is connected with the water tongue, and the plunge pool and the concrete foot are located at the same horizontal position without being connected with each other; and the two sides of the concrete foot are provided with revetments correspondingly. By adoption of the plunge pool structure, the problem of low anti-floating stability is solved, no curtain grouting system, no drainage system, no pumping drainage system and no monitoring system is arranged, the engineering quantities of concrete, basic joint bars, steel bars, consolidation grouting, drainage holes and the like are reduced, the engineering investments are decreased, the construction period of an absorption basin is shortened, the safety risks of the construction period are reduced, and the problem of inspection of the absorption basin in the operating period is avoided effectively.