文章从米歇尔·福柯考古学的视角和方法出发，对拉美20世纪的“社会传播”研究进行了分析，不仅指出拉美“社会传播”研究以“发展与解放”为主旨的话语“知识型”及其与地方现实相结合的“功能主义”“批判思潮”“国家传播政策”“后（现代）范式”“跨学科实践”等五个方面的研究陈述，而且也阐述了拉美传播研究在“学术立场”“学术组织”“研究对象”“认识论视角变迁”“方法论视角”等方面的研究话语特征。文章最后指出，拉美的传播研究更多作为一种技术来服务拉美社会的发展与解放，它借助传播知识生产与共同实践生产了不同于欧美传播的话语思维方法，同时也指出知识的“地方化”不是去照搬“他者”理论-方法，而是要结合本土意识，进行批判挪用。

From the archeological perspective of Michel Foucault, this paper analyzes the tradition of social communication studies in Latin America in the 20th century, not only pointing out the discursive episteme of “social communication” with the theme of “development and liberation” and its six sets of discursive announcements: “functionalism”, “critical thinking”, “national communication policy”, “post (modern) paradigm”, “interdisciplinary practice”, and “birth of scientific consciousness”, but also elaborating on its fundamental discursive characteristics of “academic position”, “academic organizations”, “objects of study”, “transformation of epistemological perspective”, and “methodological perspective” which are different from other regions. The article concludes that Latin America’s communication studies are more of a technology to serve the development and liberation in Latin American society, they use communication knowledge production and common practice to produce a discursive grammar of communication thoughts different from Europe and America. Meanwhile it proposes that the localization of knowledge is not to copy others’ theory-methods, but to make a critical appropriation according to the local social, to construct local academic discourse, and to realize the combination of local consciousness and foreign communication ideas.