沈从文的《边城》以湘西茶峒为叙事场域，通过翠翠、天保、傩送的命运纠葛，构建了兼具诗意美学与悲剧内核的乡土叙事。本文运用文学伦理学批评方法，从悲剧叙事的三重维度、人性伦理的现代性困境、城乡文明冲突的文化隐喻展开分析，揭示传统伦理秩序与现代性进程的内在张力。研究表明，《边城》的悲剧本质是农业文明价值体系的解构过程，其自然意象的哲学化运用与伦理选择的诗性表达，为现代文学悲剧书写提供了独特审美范式。

Shen Congwen's "The Riverside Town" takes the Xiangxi tea town as its narrative setting, and constructs a narrative of both poetic aesthetics and tragic essence through the intertwined fates of Cui Cui, Tianbao, and Nuo-song. This paper employs literary ethical criticism methods to analyze the tragedy narrative from three dimensions, the modern predicament of human ethics, and the cultural metaphor of the conflict between urban and rural civilizations, thus revealing the inherent tension between traditional ethical order and the process of modernity. The study shows that the tragic essence of "The Riverside Town" is the deconstruction process of the agricultural civilization value system, and its philosophical use of natural imagery and poetic expression of ethical choices provide a unique aesthetic paradigm for modern literary tragedy writing.