本研究主要目的為探討現今國際職業網球選手在不同表面性質網球場地的發球技能表現之差異，藉以了解現今世界男子網球單打發球技能之趨勢。本研究是以參與2009年世界四大職業網球公開賽之進入32強的選手做為研究對象，應用SPSS12.0t 檢定、變異數分析比較8項發球技能表現之差異性。所得研究結果如下：一、澳洲公開賽勝負方之第一發球成功率、第一發球贏球率、第二發球贏球率，法國公開賽之第一發球贏球率、第二發球贏球率、愛司球、發球最快速度，溫布頓公開賽之第一發球成功率、第一發球贏球率、第二發球贏球率及美國公開賽之第一發球贏球率、第二發球贏球率、愛司球等技能差異均達統計顯著水準(p<.05)。二、四大網球公開賽競賽時勝方各項發球技能表現，經單因子變異數分析後，得知在第一發球贏球率、愛司球、雙發球失誤、發球最快速度及第二發球平均速度等項目有顯著差異水準(p<.05)，負方則在第一發球贏球率、愛司球、雙發失誤及第二發球平均速度等項目有顯著差異水準(p<.05)。從研究中顯示，四大公開賽在發球贏球率方面是會影響勝負成績的關鍵表現，勝方球員均需具備有較高的第一及第二發球贏球率，獲勝的機率就會提高，而速度較快的溫布頓場地更顯重要。

This study was to compare and analysis skill serves of men's single matches in Grand Slam Tournament. Data were collected based on the tennis players who were qualified to the third round in the four grand slam tournaments in the year 2008. One-way ANOVA were used to compare eight skill variables of each single match performed on the different court surfaces. The results revealed that (1) In Australian Open tournament, the result showed significant (p<.05) difference in 1st Serve %, winning % on 1st serve PTS and winning % on 2nd serve PTS. In French Open tournament, the result showed significant difference in winning % on 1st serve PTS, winning % on 2nd serve PTS, ace and fastest speed of serves. The results from Wimbledon Open tournament showed a significant difference in 1st Serve %, winning % on 1st serve PTS and winning % on 2nd serve PTS. In addition, US Open tournament results showed significant difference in winning % on 1st serve PTS, winning % on 2nd serve PTS and ace. (2)The present results also showed significant difference in winning rate on winning % on 1st serve PTS, aces, unforced errors, fastest serves speed (p<.05) and average 2nd serve speed while losers have difference in 1st Serve %, ace, unforced errors and average 2nd serve speedand it's outstanding standard (p<.05). The result showed from the research, the key point of success or failure will be influenced from winning % on serve PTS from The Big Four Tennis Tournament, the winner player needs to possess the higher of winning % on 1st and 2nd serve PTS, the probability to win be enhanced, and the speedy faster of Wimbledon court will be more important.