The cable is completed with a black or colored low-smoke zero-halogen (LSZH) sheath, making it a robust, safe, and reliable choice for indoor optical connections. Specialized bend-resistant optical fibers provide higher bandwidth and improved network transmission performance. Butterfly-shaped optical fiber cables, also known as ribbon fiber optic cables, are a type of fiber optic cable that contains multiple fibers within a single flat ribbon. This unique "butterfly" configuration. An ordinary drop cable utilizes a standard figure-eight structure, with two parallel strengthening cores and an optical fiber in the middle. Essentially, the self-supporting. The present invention aims to provide a prefabricated end butterfly lead-in cable and its preparation and wiring method, which can effectively solve the problems of the existing prefabricated end butterfly lead-in cable in indoor wiring the structure of the environmentally friendly knitted. 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. The invention discloses an SC-type butterfly drop optical cable connector, comprising: an outer frame sleeve, an inner frame sleeve, a ferrule, a crimping piece, a metal stopper, and a tail sheath, wherein the inner frame sleeve is sleeved on Inside the outer frame sleeve, one end of the ferrule is.