The present invention relates to an oxygenated water manufacturing device, which can be used in various fields because it can be applied to and used for not only mineral water or purified water, but also other various drinks such as tap water, barley tea, green tea, corn silk tea, and soju by using a specific configuration, which allows use of only high-purity oxygen from which ozone, which is produced with oxygen when mineral water is electrolyzed, and various inorganic substances and organic substances such as calcium (Ca), magnesium (Mg), and silicon (Si) contained in the mineral water are completely filtered out, and which completely prevents a phenomenon in which oxygen is not generated by deformation of an ion resin membrane disposed between an anode (+) and a cathode (−；) in the oxygen generator due to a water-drying phenomenon in the hydrogen outlet.
