An RFID tag manufacturing method is provided that includes arranging a plurality of RFIC elements in a housing tool at a first arrangement density; and extracting an RFIC element group out of the plurality of RFIC elements arranged in the housing tool. Moreover, the extracted RFIC element group has a second arrangement density that is lower than the first arrangement density and that corresponds to an arrangement density of a plurality of antenna patterns arranged on an antenna substrate. The method includes disposing the RFIC element group onto the plurality of antenna patterns of the antenna substrate while maintaining the second arrangement density.