To improve the convenience, speed, efficiency and reliability of card issuance. [Solution] The method involves a card management
server receiving a card issuance application from a
user device that desires to have a card issued, the card issuing device requesting and receiving
authentication data from the card management
server through the issuing device management
server in response to the card issuance request, generating an
authentication code based on the received
authentication data and displaying the generated authentication code on a display, the
user device recognizing the displayed authentication code and transmitting a
verification request for card issuance to the card management server and receiving the
verification result from the card management server, the card issuing device requesting and receiving the authentication result for card issuance from the card management server through the issuing device management server in response to a request to proceed to the next step, and generating a card by saving and printing card information of the card requested for issuance on a temporary card stored in advance in response to completion of authentication for card issuance, and issuing the generated card.