Abstract: A bank card secured payment system and method using real-time communication technology includes a bank card account and cellular phone, merchant's transaction terminal, payment network, account security server, wherein the account security server is equipped with real-time server end software for real-time communication technology. The cellular phone uses real-time communication application to connect to the account security server and links to the bank card. When the payment network receives transaction request relating to the bank card account from a merchant's transaction terminal the payment network performs a security verification process using real-time communication technology via the account security server and the user's cellular phone that is linked to the user's bank card account, which serves to authenticate the security verification of the user's identity, in which case the transaction request will proceed, otherwise the transaction request would be properly declined.