The invention provides an
identification system and a method of unlicensed motor vehicles. In the prior art, the unlicensed motor vehicles are artificially identified by the traffic police, therefore, the efficiency is low. The method comprises the following steps: firstly, storing the theoretically shortest
travel time between any two monitoring intersections at the
processing center end; secondly, monitoring and taking the images of the motor vehicles passing by at the monitoring intersections, recording the moment at which the images are taken and transferring the taken images, the moment and the monitoring intersections from a network
system to a
processing center; thirdly, receiving the images, the moment and the monitoring intersections at the
processing center end, identifying the
license plates from the images and storing the
license plates, the moment and the monitoring intersections into a
database to be detected; fourthly, computing the actual
travel time of the motor vehicles with the same
license plate between any two monitoring intersections, judging whether the actual
travel time is less than the theoretically shortest travel time between any two monitoring intersections, if yes, determining the motor vehicles to be the suspected unlicensed ones. The invention can improve the identification efficiency of the unlicensed motor vehicles.