A method, by which if a reissued smart card is issued based on an old smart card, the application program loaded in the old smart card is smoothly reloaded in the reissued smart card, is disclosed. Its specific configuration will be described as below. A method for loading an application program in a smart card comprises the steps of: in response to a request for loading one application program for a smart card in the smart card that has been reissued based on an old smart card, judging whether or not said one application program was loaded in the old smart card, according to a relationship between a card id of the reissued smart card and a card id of the old smart card; and if it is found out that said one application program was loaded, loading said one application program in the reissued smart card.