An individual article management system for managing an individual article distributed through a plurality of sites with a form thereof changed at least one of the plurality of sites. Each of the information processing apparatuses transmits read identification information and formed index data to a data center apparatus through a network, and the data center apparatus, receives the transmitted identification information and the transmitted index data, and stores each of the received index data into a storing apparatus so as to be associated with each other on the basis of the identification information for identifying the individual article.