To provide a delivered information retrieval system capable of retrieving desired delivery information from large number of pieces of delivery information even for numeral delivery information with a small number of figures, and an information delivery system.

This delivery information retrieval system comprises a means for associating/storing numeral information 18 with a predetermined number of figures displaying the delivery information deliverable to a client terminal by an information tag 16 and area information 20 in which the information tag 16 exists, receiving any of the numeral information 18 among the stored numeral information 18 from the client terminal, recognizing the area information 20 in which the information tag 16 exists, retrieving the delivery information related to the area information 20 and the numeral information 16 from the stored delivery information on the basis of the recognized area information 20 and the received numeral information 18, and delivering the information to a client.