Power-supply lighting arrester

The utility model discloses a power-supply lighting arrester which consists of a base(1), an insurance pipe(3), a power supply lead(2), an earthing lead(4) and a circuit board(11), etc, The utility model is characterized in that: the insurance pipe is conveniently installed and dismantled, the insurance pipe is adopted to protect the power supply circuit, simultaneously the capacitor side paths are adopted to decompose the thunder on the power supply circuit and let slip on the earthing lead so as to effect the double-insurance function. The utility model has reasonable structure, good effect, is easily installed and used and is much conveniently popularized and applied.