优生学创立于英国，发展于美国，20世纪前期盛行于中国。如今，重回近代中国知识分子接受优生学的历史现场，会发现在百年前的知识界和文艺界优生学与文学之间有着千丝万缕的联系。优生学，顾名思义，是一门研究如何生育优秀后代、实现人种改良的学问。在生育尚不能完全与恋爱婚姻分开的近代中国，优生学在恋爱、择偶、婚姻、生育等与两性关系有关的话题中开辟出全新的讨论空间。恋爱与婚姻是中国现代文学的核心主题，因此本文试图通过梳理文学文本中的优生学话语，重建英美优生学影响下的中国现代情爱谱系。同时，通过优生学与文学的跨学科研究，再探科学话语与文学实践的相互作用。

本文除绪论、结语外共分四个章节。第一章讲述了中国现代文学与优生学的碰撞。第一节探析优生学的英文词汇“Eugenics”的四种译法及其历史语境。第二节关注中国现代文学与优生学的话语转化。第二章论述了优生学如何与中国现代文学的“恋爱”主题产生关联。第一节介绍周建人的优生学译介。第二节分析既是优生学译者，又是“恋爱自由”倡导者的周建人是如何利用优生学的科学性论证“恋爱结婚”的正当性并形成“恋爱优生学”。第三节以《妇女杂志》1921年至1926年期间的文学实践为基础建构中国现代婚恋话语空间。第三章分析了优生学对传统“贤妻良母”的改造。第一节介绍中国优生学者潘光旦的优生学理论和“新母教”。第二节剖析“反独身主义”论述背后的优生学话语。第三节围绕冰心的小说创作探讨优生学对中国现代女性形象的塑造。第四章论述了上海新感觉派情爱叙事对优生学话语的矛盾转移。第一节考察优生学对中国近代身体审美观念的影响。第二节重点关注新感觉派文学的情爱书写，剖析作为流行语的优生学、摩登女郎的优生学隐喻和动物化的两性关系。第三节通过描写新感觉派作家对优生学的接受和抵抗，阐释新感觉派与优生学之间的暧昧往来。

Eugenics was founded in England, developed in the United States and prevailed in China in the early 20th century. Returning to the historical scene where modern Chinese intellectuals accepted Eugenics, we find that there was an inextricable link between Eugenics and Literature in the intellectual and literary circles a hundred years ago. Eugenics, as its name implies, is a discipline that studies how to produce superior  offspring and achieve racial improvement. In modern China where procreation cannot yet be completely separated from love and marriage, Eugenics has opened up a new discussion space on the topics related to sexual  relationship such as love, mate selection, marriage and procreation. As love and marriage are the core themes of modern Chinese literature, this thesis attempts to reconstruct the genealogy of modern Chinese love under the influence of Anglo-American Eugenics by combining the discourse of eugenics in literary texts. Meanwhile, through the interdisciplinary research of Eugenics and Literature, it re-examines the interaction between scientific discourse and literary practice.

This thesis is divided into four chapters in addition to the introduction and conclusion. The first chapter describes the collision between Eugenics and modern Chinese literature. The first section analyzes the translation method and historical context of the concept of "eugenics". The second section focuses on the discourse  transformation between modern Chinese literature and Eugenics. The second chapter  discusses how Eugenics is related to the theme of "love" in modern Chinese literature. The first section introduces Zhou Jianren's translation of Eugenics. The second section analyzes how Zhou Jianren, who was both a translator of Eugenics and an advocate of "freedom of love", used the scientific nature of Eugenics to justify "love  marriage" and formed "Eugenics of Love". The third section constructs the discussion  space of modern Chinese marriage and love based on the literary practice of Women's Magazine (1921-1926). The third chapter analyzes the transformation of traditional "good wife and good mother" by Eugenics. The first section introduces Chinese eugenicist Pan Guangdan's "new motherhood", which was inspired by Eugenics. The second section analyzes the eugenic discourse behind the "anti-celibacy" statement. The third section discusses Bing Xin's novels and explores the role of Eugenics in shaping the image of modern Chinese women. The fourth chapter discusses the paradoxical shift of Eugenics discourse in the love narratives of New Sensation School. The first section examines the influence of Eugenics on the aesthetic conception of the modern Chinese body. The second section focuses on the love  writing of New Sensation and dissects Eugenics as a buzzword, the eugenic metaphor of modern girl and animalistic sexual relationship. The third section illustrates the ambiguous correspondence between New Sensation and Eugenics by depicting the acceptance and resistance of New Sensation School to Eugenics.