E-sports lottery tickets have been legalized in Taiwan in recent years, and whether bettors can be attracted to buy e-sports lottery tickets can be reflected in their purchase intention t. In order to explore this phenomenon, this study takes "Taiwan Sports Lottery" bettors in Kaohsiung as the research object to explore whether perceived risk and product involvement can affect purchase intention through product cognition by applying regression analysis method. This study concluded that perceived risk did not have a significant negative impact on purchase intention. In addition, product awareness has a "partial mediation" effect on product involvement and purchase intention, which means that product cognition may be one of the reasons for purchase intention. The reason for this may be that bettors become more involved in e-sports lottery tickets when the amount of information which bettors receive to analyze related products was increased, their cognition is also improved. Therefore, bettors' intention to bet will also increase.