A system for managing a bridge based on IT(information technology) is provided to enable a bridge manager to confirm condition of a bridge through a robot moving freely in a narrow internal space of the bridge. A system for managing a bridge based on IT(information technology) comprises the following units. A controlling unit(200) receives/stores/manages photographic data photographed by a bridge robot(100). A relaying antenna(210) relays the controlling unit to a wireless transmitter of the bridge robot. An electronic tag(141) stores operation command information and a movement route of the bridge robot.
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