The invention provides a ship water-penetrating closed cabin pipe bundle structure applied to the technical field of various ships such as bulk cargo, containers and roll-on-roll-off. A front cabin-penetrating pipe fitting (4) is arranged on a front box body coaming (2) of a pipe bundle adapter box body (1) of the ship water-penetrating closed cabin pipe bundle structure, wherein a rear cabin-penetrating pipe fitting (5) is arranged on a rear box body coaming (3); a plurality of pipe fittings (6) of a pipe bundle penetrate through the front cabin-penetrating pipe fitting (4) and the rear cabin-penetrating pipe fitting (5) simultaneously; gaps between the pipe fittings (6) of the pipe bundle positioned on the front cabin-penetrating pipe fitting (4) or the rear cabin-penetrating pipe fitting (5) are filled with sealing blocking materials (8); and the pipe bundle adapter box body (1) is welded to the upper portion of a cabin wall (7). According to the ship water-penetrating closed cabinpipe bundle structure, the pipe fittings of the pipe bundle can be arranged conveniently and rapidly, and the pipe fittings can be arranged and moved quite conveniently and rapidly; meanwhile, the water tightness of the pipe bundle is effectively guaranteed, the strength and the sealing performance of the penetrating cabin wall cannot be damaged, and the labor cost and the material cost are reduced.