It is intended to provide a various substances supporter by which multiple particulate carriers to which various substances are fixed or fixable can be identified from each other without the need to arrange in predetermined position and sequence to thereby attain processing speedup and facilitation through saving of time for arranging of various substances in predetermined position and sequence. It is also intended to provide relevant various substances supporter processing apparatus and processing method. There is provided a constitution comprising either multiple individual particulate carriers to which multiple varieties of chemical substances are fixed or fixable or an assembly of multiple sets of such particulate carriers and a carrier supporting part enabling measurement of the mentioned multiple individual particulate carriers or assembly of multiple sets of particulate carriers from outside and capable of supporting them in a substantially static state, wherein either each particulate carrier among the multiple individual particulate carriers or each particulate carrier of at least one belonging to the assembly of multiple sets of particulate carriers is labeled so as to ensure identifiability from each other according to every variety of the chemical substance and every particulate carrier or every assembly of particulate carriers prior to introduction in and supporting on the carrier supporting part.