A self-generating streetlight is provided, including: a light pole; a lamp which is provided on the light pole to convert electricity into light; a condenser which comprises a central condenser plate and side condenser plates and converts solar energy into electricity, the central condenser plate being coupled to the light pole and the side condenser plate being arranged around the central condenser plate; a joint unit which allows the side condenser plates to folded to and extended from the central condenser plate; and a control box which comprises a battery, a power supply, and a controller, the battery accumulating electricity produced by the condenser, the power supply supplying the electricity to the lamp, and the controller controlling the lamp.