The utility model relates to a fiber optic cable plant technical field especially relates to a case is handed over to communication unification of three nets light, a case is handed over to communication unification of three nets light, include: box, public storehouse, independent storehouse, wire winding ring, dish fiber round, baffle, hold up tank, tray formula spectrometer, protect fine circle,handle, first through -hole, bundle fine ring, solid fine clamp, rubber circle, optic fibre splice tray, second through -hole, door, lock and label, the box comprises public storehouse and three independent storehouse, and box and public storehouse and three independent storehouse formula structure as an organic whole, public storehouse sets up on the upper portion of box, and public storehouse and box formula structure as an organic whole, independent storehouse sets up in the lower part of box, and independent storehouse and box formula structure as an organic whole, through above structural improvement, it is reasonable to have a structural design, convenient to use, and the thermal diffusivity is strong, and it is convenient to remove, and network stabilization, operating repair are swiftly convenient, advantage such as implement the "Three -in -One network" to the effectual problem and shortage that exists in the current device of having solved.