The present invention relates to a distribution aiding system, a distribution aiding server, a distribution aiding method, and a distribution aiding program capable of selling articles without individual trading conditions being known to a maker, other users or other dealers, and is so configurated that a user retrieves or selects a necessary article, the user registers order information according to the selected article, and a dealer in charge of the user registers order-acceptance condition information to be added to the order information, and notifies the user of the order-acceptance condition information.