FTTH Butterfly Optic Cables, also known as flat drop fiber cables, feature a compact flat profile with optical fibers placed at the center and reinforced by parallel strength members on both sides. The outer sheath is typically LSZH or PVC, optimized for indoor and outdoor. Butterfly-shaped optical fiber cables are a popular type of fiber optic cable that is commonly used for data transmission in telecommunication networks. Butterfly FTTH drop cable incorporates the indoor soft cable and the. The invention belongs to the technical field of optical cables, and discloses a butterfly-shaped drop-in optical cable for communication, which has a fitting part (1), a plurality of protection bodies (2), a plurality of butterfly-shaped drop-in units (3), a protective layer (4), The outer sheath. For residential buildings with no in-pipe or unused in-house concealed pipes, it is advisable to lay butterfly-shaped optical cables by laying bellows in the building.