The present invention relates to an electronic commerce system using product broadcasting independent from a content platform. According to the present invention, a paid broadcasting channel map for paid broadcasting provided via a broadcasting network and a product broadcasting channel map for product broadcasting provided via the Internet are integrated into a single integration channel map, and the integration channel map is managed. Accordingly, product broadcasting provided via the Internet is easily accessed and changed by means of simple user manipulation, and electronic commerce is enabled by using product broadcasting that is not dependent on the content platform.