In recent years various national sports organizations and the government have actively promoted the development of sports.The establishment of this new sports culture has shaped expectations for international sports .Over the years many 「Sports Stars (Lin,1995)」 have raised the social status of national sports . Unfortunately , the frequent occurrence of bad behaviour by well known Sports Stars still receive a lot of attention by the media .For example ,fixed games、gambling、use of drugs、personal misconduct ,There is no doubt that like a sharp knife these events have killed the good image of sport. 「Sports star」 are public figures ,celebrities ought to set a good example for society as a whole .There is no denying that less people have unbehavior . They can have a bad influence on society .And then they send everybody the wrong messages that it is ok to unbehavior . Sports star do make their contribution , but we should also be aware of the negative influence they have on society .For many famous Sports star , they must be cautious when they do something . Key words: