This research surveyed 136 spectators from badminton court of 91st academic-year collegiate Athletic games to investigate the demographic features of spectators and to access spectators’ recognition rate of sponsor corporate courtside advertisings. The findings of this study revealed that the demographic features of spectators at badminton courts were: male spectators slightly more than female, age beyond 25 years old, and most spectators were athletes who participated competitions. Victor Badminton got highest recognition rate (90.4%), and then Chi-Lih Badminton Material store (66.2%), Yih-Dah Hospital (41.2%), Hunter Boy Corporation (28.7%). According to the results of this survey, researchers also presented some concrete suggestions for sport sponsorship and future studies.