Vehicle traffic accident early warning method

The embodiment of the invention discloses an on-vehicle traffic accident early warning method, and relates to the technical field of image recognition. The method comprises the following steps: acquiring a vehicle front picture shot by a vehicle-mounted camera of a current vehicle in real time; wherein the vehicle front part comprises a vehicle front part, a vehicle left front part and a vehicle right front part; identifying a first license plate located in front of the current vehicle in the first lane, the second lane and the third lane in the image in front of the vehicle through a preset image identification method; according to the proportion change condition of a first license plate located in front of the current vehicle in the first lane/the second lane/the third lane within the first preset duration in the image in front of the vehicle, the driving speed of the vehicle to which the first license plate belongs relative to the current vehicle is estimated; and when the driving speed of the vehicle belo