Abstract: A prepaid card management method and system which can comprehensively manage an issuance of personal identification numbers (PINs) of various affiliated prepaid card companies and even when each generation system of each PIN is different for each affiliated prepaid card company, can adaptably issue the PIN. A prepaid card management method and system according to the present invention can adaptably issue PINs of prepaid cards of various affiliated prepaid card companies by including an operation system to comprehensively manage a plurality of PIN issue systems.

Abstract: There are provided an electronic payment system using a multifunctional prepaid card which is commonly used in payment for use of services and purchase of goods, and a method of selling the multifunctional prepaid card. The electronic payment system includes a multifunctional prepaid card having a predetermined Personal Identification Number (PIN), shopping/service providing means for providing services and goods to a user of the multifunctional prepaid card and requesting the PIN of the multifunctional prepaid card for payment, and a prepaid card management system for managing state/balance information for PIN for the multifunctional prepaid card on a database, making a settlement by referring to the balance amount of the corresponding PIN if payment for a specific PIN is requested by the shopping/service providing means, and updating the settlement result on the database.