The butterfly drop indoor optical cable for access networks is a dedicated cable for indoor fiber access, featuring a flat butterfly-shaped design. The optical communication unit is placed at the center to ensure low-loss, stable transmission of optical signals. Two parallel metallic or non-metallic strength members are arranged on both sides to effectively enhance tensile and bending resistance and protect the internal fibers. The outer layer is extruded with a low-smoke zero-halogen colored or black jacket, featuring flame retardancy, environmental friendliness and aging resistance. The cable is soft and easy to install, mainly used for fiber-to-the-home, indoor broadband and smart home networking access scenarios.