Fiber optic splitter box is the wiring and splitting equipment of user terminal in FTTH system, which is a kind of equipment used for terminating, diverging, wiring and splitting of fiber optic cable and fiber optic fiber; and providing protection and management of fiber optic cable. It is mainly used for the user access point of FTTH-ODN network, and can be divided into indoor and outdoor type according to its installation scenario, and can be divided into wiring type and splitting type according to its function.