This paper examines the role of Western left-wing music in politics in the 20th-century,revealing its historical position as a tool for social protest and political expression.By analyzing how music conveys ideology,inspiring collective action,and interacting with political events,the paper emphasizes the critical role of music in shaping social change and explores its political function,and its reflections and social impacton contemporary society as well.Additionally,the paper also investigates the position of musicians within social classes and the social motivations behind their creations,illustrating the evolution and expression of left-wing musical attributes in modern and contemporary times, as well as certain phenomena and issues that exist in the historical process of crossing the artistic field.