The period from about 1871 to the outbreak of the First World War in France in 1914 was a golden age called ‘Belle Epoque’, which means beautiful era in French. Economically, through the Industrial Revolution, culture and art flourished centered on Paris, and democracy was developed through the establishment of democratic procedures through the civil revolution. The musical characteristics that emerged in the Belle Epoque era stemmed from cultural backgrounds. These extra-cultural influences and the spread of cultural capabilities led to the birth of new cultural trends such as impressionism, and the activities of impressionist musicians and artists contributed to making the Belle Epoque era more splendid. This study sheds light on the new trends and characteristics of the music field where the Belle Epoque can be most conscious of. And this study examines the music of Debussy, who represented Belle Epoque with impressionism, and analyzes the influence of contemporary cultural background on his music. This study is meaningful in suggesting a new hope for a beautiful period and cultural development by examining the splendid period brought about by the times and social changes in the development of international culture and emphasizing the influence that the era of peace and stabil...