Street lamp support and installation method of street lamp support

The street lamp support comprises a main lamp pole, a secondary lamp pole and a lampshade, the outer edge of the lampshade is provided with a plurality of sprayers used for spraying water to the surface of the lampshade, the main lamp pole is provided with a water spraying device connected with the sprayers, and the water spraying device is provided with an extrusion rod; an energy storage driving part capable of driving the water spraying device is arranged on the main lamp pole, the energy storage driving part comprises a wind resistance plate, a rack is arranged on the wind resistance plate, and a gear matched with the rack is arranged on the main lamp pole; according to the street lamp support, the lampshade of the street lamp can be automatically cleaned before the street lamp is turned on, the illuminance of the street lamp is improved, meanwhile, labor for manual cleaning of the street lamp is reduced, meanwhile, a standby bulb is arranged in the street lamp, automatic replacement can be achieved when