Lightning suppressor for power supply

The utility model provides a power supply lightning suppressor, and relates to the technical field of lightning protection. The suppressor comprises a shell, an input connector, an output connector and a grounding pole are arranged on the shell, and a protection circuit is arranged in the shell; the protection circuit comprises a first filter circuit and a second filter circuit which are connected in series, the input end of the first filter circuit is connected with the input connector, and the output end of the second filter circuit is connected with the output connector; a first-stage protection circuit is arranged between the input connector and the first filter circuit, and a second-stage protection circuit is arranged between the first filter circuit and the second filter circuit; and the first-stage protection circuit and the second-stage protection circuit are both connected with the grounding pole. The power supply thunder and lightning suppressor provided by the utility model can reduce the thunder