Huacheng multi-core distribution indoor optical cable is constructed using tight or semi-tight buffered optical fibers manufactured with the latest coating technology, reinforced with aramid yarn strength members, and then extruded with a polyvinyl chloride (PVC) or halogen-free flame-retardant outer sheath. This type of cable is suitable for indoor cabling and connections inside and outside optical transmission equipment, and can also be used in the production of multi-core connectors for distribution cables.