The present disclosure is directed to a fiber optic splice protection device. In one aspect, the device includes a closure including a cover and a chassis, and a fiber routing management unit mounted on the chassis of the closure. The fiber routing management unit can include a bottom member, flexible clippers, which are removably mounted on top of the bottom member; and a resilient biasing member, mounted on the chassis of the closure. The biasing member applies an elastic biasing force to the bottom member such that the bottom member is pressed against fiber optic cables to be spliced under the action of the elastic biasing member. The disclosed device avoids the phenomenon of messy winding of the fiber optic jacket and the fiber optic, and increases the winding space of the cable.