Abstract: The present disclosure relates to a mobile gift certificate transaction method applying NFT technology. The method includes NFT-tokenizing a gift certificate code stored in a gift certificate storage unit; receiving a buying signal of a gift certificate from a gift certificate buyer terminal; updating an NFT-tokenized gift certificate code corresponding to the received buying signal; transmitting an access address of the NFT-tokenized gift certificate code corresponding to the received buying signal to a gift certificate receiving terminal; receiving a closure request to close the access address of the gift certificate code from the gift certificate receiving terminal when the gift certificate receiving terminal rejects receiving the gift certificate; and restoring the updated NFT-tokenized gift certificate code, in response to receiving the closure request.