The invention discloses a large data based LED streetlamp. The large data based LED streetlamp comprises an illuminating unit, an ambient light illumination sensor, a communication unit and a controller, wherein the communication unit is used for receiving large data which is from internet of vehicles, and represents rapid braking times, rapid accelerating times and rapid turning times, within the last time bucket and the last road section, of an approaching vehicle and large data of real-time vehicle speed and real-time positions; the controller is used for judging whether a driver of the approaching vehicle is in a possible excited/fatigue driving state or not or has an excited/fatigue driving habit or not according to the large data, and is used for deciding a working mode of the illuminating unit according to the judged results. The large data based LED streetlamp can regulate brightness of the streetlamp according to the environment, and has the energy-saving effect; and more importantly, in case of not affecting a normally travelling vehicle, safer illumination is performed on the vehicle with an abnormal travelling state, so that travelling safety is improved.