Apart from the traditional media channels for advertising, the sports-related companies are keen to explore an innovative marketing channel to outreach their potential customers. A fairly new marketing channel called in-game Advertising (IGA) embedded in the sports video games is able to bring advertisers many commercial possibilities. Although American sport marketing and sports-related businesses have aggressively developed this target market and being gained the harvest, the sport marketing and sports-related companies in Taiwan are still at the exploration stage regarding this new medium. Therefore, by analysis and reorganization on the materials, this article was aimed to elaborate the huge business opportunities of the sport video game in the U.S. market and the present market situation in Taiwan and to introduce the basic concept of in-game advertising. It is expected to provide the sport marketing and sports-related businesses in Taiwan with an alternative and idea in the subject of marketing techniques.