[Problem] To provide a laver net management system which, without depending on the experience of a laver producer, can haul up a laver net from the sea at an appropriate time. [Solution] This laver net management system 1 is provided with an acquisition module 14 which acquires vicinity information about the seawater where a laver net 33 for culturing laver is immersed, an analysis module 15 which analyzes the vicinity information, and a hauling module 312 which, on the basis of the analysis results, hauls up the laver net 33 from the seawater. Thusly, it is possible to haul up a laver net 33 from the seawater on the basis of the results of an analysis of vicinity information about the seawater in which a laver net 33 for culturing laver is immersed.
