A high-speed weighing system is set up on the main road to measure the weight of all normal running vehicles according to the relevant vehicle weight limit standards. At the same time, the vehicle width and height are measured. After weighing the key points, the license plate capture camera and lane monitoring camera are set to capture the pictures of the head and whole vehicle of the out of gauge vehicles and automatically identify the license plate. An electronic information board is set behind the detection point to give a video warning to the overloaded vehicle and license plate to notify the vehicle of overload. The identified license plate number can be used as an auxiliary tool to warn the vehicle and identify the vehicle. The communication system transmits the relevant information of the overweight vehicle, such as vehicle weight, complete vehicle and front image, license plate number, etc. to the high-speed weighing management computer through the network. The staff can refer to the license plate number of the vehicle and the front and complete vehicle photos and monitoring images to verify the vehicle.