Abstract: A radio IC number tag (10) having a container number (1a) inputted is applied on a container (1); a radio document tag (14) having container (1) physical distribution information inputted is set to a trailer (2); and a radio antenna (11) is arranged at a gate of a container terminal. Upon passage of the trailer (2) through the gate, the radio antenna (11) receives the physical distribution information transmitted from the radio IC document tag (14) while reading the container number from the radio IC number tag (10) applied on the container (1). Such information is sent to a physical distribution information center (31). A computer (31a) in the physical distribution information center (31) checks up the container number (1a) with the physical distribution information and the like for confirmation and data-processing to send a command signal for a storage address to the trailer (2) through the radio antenna (11).