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. 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. The butterfly-shaped introduction part 1 is composed of a first fan-shaped body 11, a connecting body 12, and a second fan-shaped body 13 that are connected in sequence. The upper edge of the first fan-shaped body 11 is a part of a cylinder, and the There is a first reinforcing member 14. Butterfly-shaped optical fiber cables are a popular type of fiber optic cable that is commonly used for data transmission in telecommunication networks. They are called butterfly-shaped due to their unique design, which features a flat shape with two parallel fiber ribbons running down the center. FTTH Butterfly Optic Cables are specifically designed to meet the growing demand for high-speed fiber-to-the-home deployments. Their flat, butterfly-shaped structure combines optical fibers with strength members, making them ideal for indoor wiring, drop cable installations, and last-mile network. Design flexibility and enormous optical properties of Photonic Crystal Fiber (PCF) suited for different types of applications have influenced researchers and engineers in enhancing present drawbacks.