Though the badminton can not be called the major sports, they are the sports which hold considerable players population However, m comparison with the tennis racket, the paper which studied the badminton racket is few, and it is not very much studied and has not been announced The research was carried out for the purpose of in this study, it does experimental modal analysis on the badminton racket, and examining the vibration characteristics In this paper, we studied what causes it, the difference of vibration characteristics of the 3 rackets