The present invention is to offer an oxygen bath system, which supplies a mist of liquid at a predetermined pressure value together with highly concentrated oxygen into a chamber of accommodating a human organism and being foldable, thereby enabling to efficiently cause oxygen and the mist to be absorbed into the skin and the mucous membrane of a human organism. The oxygen bath system comprises a chamber (51) of accommodating the human organism therein a gas supply means (11, 41) of pressurizing and supplying air gas containing oxygen gas of 25 to 40% by adding oxygen gas to air into the chamber a liquid supply means (21) of supplying a liquid and a mist generating means (31) of generating a mist of the liquid and supplies the generated mist into the chamber. Herein, the chamber (51) is structured with a vinyl chloride material having flexibility, and can withstand against internal pressure of at least 1.4 air pressure.
