Provided is a pressurized carbon dioxide bathing apparatus for causing even a small amount of carbon dioxide to be efficiently absorbed from skin of a living body with the structure of a cover suit simplified, and the pressurized carbon dioxide bathing apparatus is to bring carbon dioxide with a concentration of a predetermined value or more into contact with skin of the human body and thereby promote the blood circulation, and is characterized by being comprised of a carbon dioxide supply means 1 for supplying a mixed gas of carbon dioxide and water vapor, a compressed air supply means 2, a first cover suit 3A which is connected to the carbon dioxide supply means 1 via a connector 6, is filled with the mixed gas supplied from the carbon dioxide supply means 1, and forms an enclosed layer 4 to bring the mixed gas into direct contact with skin of the human body, and a second cover suit 3B which is connected to the compressed air supply means 2 via a connector 7 and forms an enclosed layer 5 filled with compressed air supplied from the compressed air supply means 2 outside the first cover suit 3A, where the carbon dioxide is brought into contact with skin of the human body with a predetermined pressure value or more by the compressed air.