The invention relates to the technical field of cable-stayed warning equipment, in particular to an energy-saving cable-stayed warning lighting device based on a solar panel, which comprises two mounting arc plates and two
butt joint arc plates, a connecting plate is fixed between the mounting arc plate and the
butt joint arc plate on the same side, two base plates are fixed in one mounting arc plate, and a solar panel is fixed in the other mounting arc plate. According to the device, a traditional stayed cable warning mode is optimized, a solar panel is adopted to automatically supply power, a warning strip is matched to emit light, the warning effect is achieved, an external power source is not needed, and the device is simple in structure, convenient to use and high in practicability. Meanwhile, the
butt joint arc plate and the installation arc plate are matched with each other, stable and rapid installation on the inclined pull line is achieved, the adjusting piece and the positioning part are matched with each other, installation and adjustment are easier and more convenient, and personnel can conveniently move the solar warning
assembly on the inclined pull line for overhauling.