According to the development of the gambling industry and the changes of gambling concepts, the gambler participation rate has raised gradually. Moreover, the importance of living quality and diversity is being highlighted nowadays. People choose to join gambling activities in order to fulfill a dream or to acquire the excitement, for example, buying the fantastic lotteries or the extremely exciting sports betting. The purpose of the present study is to explore the relationships among gambling motivation, types of gambling activities, and gambling involvement. To test the accuracy of hypotheses, 827 self-report data were collected from internet-based and paper-based questionnaires. The results indicate that gambling motivation significantly influences the choice of gambling activities; the choice of gambling activities significantly influences the level of gambling involvement; gambling motivation significantly influences the level of gambling involvement. To be more specific, the results also suggest that gamblers are more likely to participate in the skill of gambling with higher intrinsic motivation, and these people have higher gambling involvement. Furthermore, the choice of gambling activities will mediate the relationship between gambling motivation and involvement. At the end of the research, the implications for practices and the suggestions for future researchers are discussed.