The structure of indoor butterfly covered optical cable is usually composed of optical fiber, reinforcement, sheath and other parts. The optical fiber is the core of the cable and is responsible for transmitting optical signals. Their flat, butterfly-shaped structure combines optical fibers with strength members, making them ideal for indoor wiring, drop cable installations, and last-mile network. The invention relates to the field of optical cable production, in particular to a butterfly-shaped optical cable production device which comprises a pay-off mechanism, an extrusion mechanism, a cooling and drying mechanism and a traction device which are sequentially arranged, wherein the. Butterfly-shaped optical fiber cables are a popular type of fiber optic cable that is commonly used for data transmission in telecommunication networks. Its innovative design positions the communication unit at the core, flanked by two parallel non-metallic strength members (FRP) for enhanced compression resistance and. Indoor butterfly-shaped leather optical cable, whose cross-section is shaped like a butterfly, is a user access optical cable designed for indoor environments.