Through the research on the athletes' skills play and physical agility consumption in Sydney Olympics and the 49th World Table Tennis Championships, this paper studies the impact of changes in the size of table tennis on the athletes, obtains that the bigger table tennis will lower the athletes' competition quality, establishes the indicator system of the audience to appreciate the competition quality, and analyzes the changes in the audience to appreciate the game. On this basis, it uses the optimization theory, builds relationship between the intensity degree of audience's applause and the plate number and the relationship between the competition time and athletes' satisfaction degree, and puts forward reasonable proposals for the table tennis players. © 2014 Trade Science Inc. - INDIA.