Abstract: A content delivery system and content delivery method allow data or files acquired by delivery to be replayed multiple times on each terminal without redelivery and can prohibit replay by people without permission. Included are the steps of determining, when predetermined information is input from the terminal 14A, whether the information is identical to predetermined member information, and of receiving a request, via a predetermined application 20A of the terminal 14A, and delivering content by streaming to the terminal 14A when the information input from the terminal 14A is identical to the member information.