The present invention relates to a remote managed ballast water treatment system using augmented reality, in particular, a ballast water treatment system (hereinafter, referred to as “BWTS”) which receives operation and failure information from various sensors installed in each component within a device, the remote managed ballast water treatment system comprising: an augmented reality terminal having a software application installed therein, which can recognize each component of the BWTS through shape information in a shot image while shooting a real-time image and provides information on a state of the BWTS and information required for the BWTS (provides augmented reality information), through a computer graphic image, in addition to a real-time image of reality; an augmented reality maintenance apparatus for the BWTS, the apparatus comprising a BWTS interface, an augmented reality interface, a satellite communication interface, and a control unit; and a remote management system of a terrestrial base station which shares sensing information of the BWTS and real-time image information of the augmented reality terminal with satellite communication through the satellite communication interface, wherein, when BWTS maintenance information has been sent from the remote management system of the terrestrial base station during a BWTS failure, the control unit outputs a failure point and repair information as augmented reality image information to the augmented reality terminal, a failure treatment method is guided to a user as a real-time augmented reality image, and the terrestrial base station supervises a failure treatment process of the BWTS through a real-time image.