Disclosed herein is a payment system and method for e-commerce via digital broadcasting. The payment system performs payment when transaction is conducted in response to a commodity purchase request while watching a digital broadcasting program. The payment system includes a digital broadcasting terminal, a program provider, an e-payment gateway, a Value Added Network (VAN) company and a financial company. The digital broadcasting terminal includes an e-wallet for storing client and payment information and a drive application for driving the e-wallet. The program provider includes a digital broadcasting and Internet connection supporting server and a client tool kit for an e-payment gateway. The e-payment gateway operates in conjunction with the client tool kit and requests transaction approval from a VAN company. The VAN company queries a financial agency about whether transactions can be approved through a value added network. The financial agency determines whether transactions are approved in response to a query request of the VAN company and transfers money for payment.
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