The invention provides a special relieving cabin for astronauts and belongs to the technical field of spaceport cabins and provides a multifunctional relieving cabin for astronauts. The special relieving cabin for astronauts is capable of providing a place for exercise, entertainment, sanitation and hygiene, and body relaxing to the astronauts, so as to ensure that the astronauts relax physically and psychologically in a tensioned, heavy and boring aerospace environment, the working efficiency of the astronauts is improved, and the physical and psychological health are ensured. The side wall of a cabin body is provided with a hollow cavity; the surface of the inner cavity of the cabin body is provided with multiple air holes communicated with the hollow cavity, the bottom of a chair is rotatably connected with the cabin body; the chair is provided with a safety belt; a far infrared SPA steaming bag is arranged below the chair; a mode selector is respectively and electrically connected with an exercise system, a relieving system, a cleaning system, an anion system, a high pressure oxygen system, a forest bathing system and a far infrared SPA steaming bag. The special relieving cabin integrates functions of exercise, relaxation, resting, cleaning and relieving, is mainly used for spaceports and spacecraft, and also can be used for civil use.