An individual information determination system for eggs (E) includes: an orientation determination unit (11) which determines a position which a temporary container (A) having a plurality of holes (a) with eggs (E) accommodated therein assumes as it is transported on a temporary container transporting unit (40) and an individual information storage unit (12) which manages individual information of eggs (E) associated with the holes (a), respectively, based on the position of the temporary container (A) transported that is determined by the orientation determination unit (11).
