The purpose of the research was to discuss the reasons and the general situations of Taiwan nation participation in the World Games, and to analyze the scores and the specific results of holding the World Games 2009 in Kaohsiung. By means of historical research method and document analysis, after collecting and analyzing relevant literatures and reports, the results were as follows: 1. In 1980s, Taiwan was forced to suspend from joining in the Olympic Games activities due to the problems of membership and national anthem, meanwhile, the first World Games was under preparation. However, because of not taking part in Olympic Games, Taiwan didn’t abandon the participation in other sport games in stead of starting to plan to join in. 2. From 1981 to 2009 the World Games in Kaohsiung, Taiwan obtained 24 gold, 23 silver and 21 bronze medals in 8 World Games, 5 gold, 6 silver and 2 bronze medals in Demonstration Games (Invitation Games). Analyzing the scores in the first 5 World Games in the past, it was the Taiwan's best strength to win the gold medals in Women taekwondo and Women weight lifting. Furthermore, the most stable to win gold medals from the sixth to eighth Games were Men & Women billiard, Women tug of war, Women speed roller sports and Men & Women powerlifting. 3. The specific results of holding the World Games 2009 in Kaohsiung, including compliance with the Olympic mode to participate or host international sports event, the excellent representation of players' performance, the enthusiastic participation of the sport volunteers, the establishment of 7 major Sport Parks, and the successful combination of urban marketing and sports events absolutely helpful to promote the sport climate of our nation and the city marketing. Through the simultaneous broadcasting of international media, Kaohsiung had the opportunity to stand on the stage of international sport games and made a successful diplomacy in sports.