The invention provides a visible optical signal transmission optical cable. The visible optical signal transmission optical cable comprises a cylindrical optical conductor inner core. An optical cable sheath is sleeved on the outside surface of the optical conductor inner core, and reflective aluminum foil is arranged between the optical cable sheath and the optical conductor inner core in a lining mode. The optical cable sheath is made with a thermoplastic polyurethane elastomer 90A as a substrate. The visible optical signal transmission optical cable provided with the optical cable sheath is adopted and matched with a light source and a light source amplifying lens for engineering lighting, work can be carried out in various complex environments, service life of the visible optical signal transmission optical cable is long, safety factors are high, and meanwhile, electrical energy is saved.