When vehicle enters the dynamic weighing region, it has also entered the license plate recognition place, the system will recognize vehicle license plate, and the result could be uploaded to the software system of detection station. Detection station software system matching the uploaded vehicle license plate data with vehicle weighing data, and according to the requirements of overloaded vehicles discriminant standard set up transfinite limit, automatic identifying whether the vehicle is overweight or overspending. If vehicles overrun, according to the user’s settings, can provide prompt information to external display device. Every car will form a complete car information, including vehicle speed, axle load, the number of shaft, wheelbase, vehicle weight, license plate, the speed of the car, over time, whether overrun, and upload to the sub-center database, convenient for searching, sharing and analysis car record.