Shockproof packaging box of optical splitter

The invention relates to the technical field of packaging boxes, in particular to a shockproof packaging box of an optical branching device, which comprises a packaging box, an optical branching device, an optical branching device and an optical branching device, the cooling mechanism is located in the hollow bin; the fixing mechanism is located in the placing bin; the cooling mechanism comprises a motor fixedly installed outside the hollow bin, a circular plate is rotatably connected to the interior of the hollow bin, and a vertical plate is vertically and slidably connected to the interior of the hollow bin. When a circular plate rotates, one side of a rack is driven to rotate, the rack stretches out and draws back in a supporting block, then a gear and a stirring rod can be driven to rotate through movement of the rack, and water is stirred through rotation of the stirring rod, so that ice blocks are rapidly dissolved in the water to form cooling water; and the cooling water in the hollow bin can cool the