This study built the structure of the marine sports, recreation, and tourism industry in Taiwan using the literature analysis method and the Delphi method. The research subjects were 13 experts / scholars from the marine sports, recreation, and tourism industry. During the literature synthesis phase, a total of 8 types of businesses, including "marine sports construction", "marine sports manufacturing", "marine sports wholesale", "marine sports retail", "marine sports appliance rental", "marine sports education and service", "marine sports recreation and leisure", and "marine sports other" businesses, and 55 trades were summarized. According to the results of the Delphi method, in Taiwan, the structure of the marine sports, recreation, and tourism industry covered 8 types of businesses, including "marine sports construction", "marine sports manufacturing", "marine sports wholesale", "marine sports retail", "marine sports appliance rental", "marine sports education and service", "marine sports recreation and leisure", and "marine sports other" businesses, and 43 trades. It is suggested that further study can adopt the classification structure of marine leisure and sports and tourism industry in the research. Consult the advanced countries industry development strategies to investigate the economic value of this area. Also academic institutions and government departments can analysis marine leisure and sports and tourism industry to provide the reference to develop of industrial upgrading and organizations straighten in industry.