The invention discloses an energy-saving new energy street lamp. The energy-saving new energy street lamp includes a lamp pole, a storage battery, a head lamp, a bracket and a solar power generation device, wherein the bracket is arranged on the lamp pole and used for supporting the head lamp, the solar power generation device converts solar energy into electrical energy and stores the electricalenergy in the storage battery, and the storage battery is electrically connected with the head lamp; and the energy-saving new energy street lamp further includes an automatic switching system, the automatic switching system includes an illumination sensor, a controller and a control switch, wherein the illumination sensor is arranged on a lamp pole and used for real-time detection of the ambientillumination intensity, the output end of the illumination sensor is connected with the input end of the controller, the output end of the controller is connected with the input end of the control switch, and the output end of the control switch is connected with the input end of the head lamp. According to the energy-saving new energy street lamp, sunlight is taken as the energy, the solar powergeneration device charges the storage battery at day, the storage battery powers a lamp source at night, complex and expensive pipeline laying is not required, the layout of lamps and lanterns can beadjusted at will, and safety, energy conservation and no pollution are achieved.