DESCRIZIONE
Disclosed is an automatic feeding system for an underwater fish farm, which includes a marine base facility standing vertically in the sea; an underwater fish farm installed on an outer surface of the marine base facility; a storage tank installed inside the marine base facility to store feed to be supplied to the underwater fish farm; a feed transfer device transferring the feed discharged through an outlet of the storage tank; a feed supply device mixing seawater with the feed transferred by the feed transfer device and supplying the mixture to the underwater fish farm; a controller installed inside the marine base facility to control operations of the feed transfer device and the feed supply device; and an illumination device installed in the underwater fish farm to illuminate an inside of the underwater fish farm.