The invention discloses a whole vehicle metering method of a full-table dynamic rail weighbridge. The whole vehicle metering method comprises the processes of (1), collecting AD (Authenticated Dictionary) value data; (2), judging excessive balance of the vehicle; (3), judging a vehicle type; (4), judging a vehicle walking direction; (5), judging a vehicle walking speed; and (6) weighing the vehicle. A method with combination of an optimization algorithm and an average algorithm is used for processing data, so that the method is a core part of a vehicle identifying software algorithm of a full-table whole vehicle metering dynamic rail weighbridge; and the method comprises the steps of judging and calculating according to a synthetic waveform, finding a weight calculating section and calculating the weight. The whole vehicle metering method is capable of judging the running state of the vehicle on the rail weighbridge in real time and judging the information comprising the walking direction, the speed and the type of the vehicle.