To provide a sectional oxygen room by which a space capable of filling concentrated oxygen in a room of general home can be created, wherein a person lives or stays for a long time in the space to enable a person in poor health or having lower immunity power to easily restore health.

Both end parts of a pole are fixed and assembled by fastening metal fittings to form a frame with a solid space. The sectional oxygen room is formed by covering whole faces rxcept the bottom face of the frame by transparent or translucent covers with at least one entrance. A concentrated oxygen supplier without pressurizing function is set outside a portable sectional oxygen room to supply concentrated oxygen through an oxygen supply tube to the inside of the sectional oxygen room.