To provide a device for managing vehicles, with which a variety of vehicle managements in the wide area can be performed by capturing information for the vehicle within a designated controlled area and analyzing for processing these information, based on database.

In a system for widely managing the vehicles 1, a digital video camera (DVC11) photographs the vehicles on a designated measuring point within the controlled area for a designated period of time, and a registration number for the vehicle is recognized by a registration recognizing means 20 by means of character recognition from a license plate image of this vehicle. In a main server device 30, a warning note is issued automatically to the violating vehicle, running with DPF yet to be attached, within the controlled area by utilizing the database, such as a measurement information master, in which measurement information including this registration number is stored; a DPF attached vehicle master in which information for the DPF attachment is stored; a vehicle master in which vehicle information is stored; a violating vehicle master in which the illegal vehicle is stored; and a mapping software DB, and the like.