威爾第 (Giuseppe Verdi，1813-1901) 這位十九世紀義大利歌劇代表作曲家，其一生中創作二十六部歌劇作品中多以莊歌劇為主，在晚年由於劇作家好友包益多不斷的鼓勵，因此促使威爾第創作出抒情喜劇《法斯塔夫》，此部作品推翻過去其歌劇的風格，不但成功的為威爾第重新樹立新的歌劇風格，且為其歌劇創作生涯畫上一個完美的句點。 此論文首先闡述威爾第的歌劇風格，之後，對其歌劇《法斯塔夫》創作與演出過程及三個演出地區之版本進行探討，進一歩透過音樂分析發現威爾第如何運用不同的音樂素材讓整齣歌劇具連貫性。並將其與羅西尼的傳統喜歌劇《塞維亞理髮師》做分類比較，歸納出此歌劇的特點與創新處作一結論。 Giuseppe Verdi (1813-1901), 19th-century Italian opera composer. Most of his 26 works are opera seria. He composed commedia lirica “Falstaff” in his late years because of continuous encouragement from his pal composer Boito. “Falstaff” not only created a new style of opera for Verdi but also drew a perfect ending for his opera-composing career. First of all, the essay describes elaborately on Verdi's opera style. It discusses the creation of "Ftalstaff",the process of performing and three different versions performed in various areas. Furthermore, the author finds out how Verdi uses different music sources and materials to make the whole opera more coherent through methods of music analysis. In addition, the author compares "Ftalstaff" with Rossini's "Il Barbiere di Siviglia" by categories, and then induces the characters and innovations of it.