To improve the convenience.

This prize exchange system is provided with an exchange start terminal disposed in a store handling a first variable body or its periphery, receiving an input of member identification information from a portable communication terminal, receiving an input of the first variable body, and receiving the input of the code information from the member carrying the portable communication terminal and selection of a second variable body of an exchange target; an exchange control terminal receiving and storing, at least, the member identification information and the code information out of the information inputted in the exchange start terminal via a network; and a recognition terminal disposed in a store handling the second variable body or its periphery, collating the member identification information received from the portable communication terminal and re-inputted code information with the member identification information and the code information stored in the exchange control terminal, and recognizing the correctness of the exchange right, or the right of performing the exchange. When the result of the recognition is positive, the second variable body is provided to the member.