Abstract: The concept of speech community originated from Saussures Course in General Linguistics, developed in Bloomfields Language, improved by Labov, Gumperz and Hockett and other linguists. With the rapid development of information technology and the increasingly diverse channels of human communication, the member identity of speech community represents the feature of generalization in spatial and geographical aspects. As a result, the boundary of its concept has been shifting, along with the loss of the original concept boundary and the virtuality of the new concept boundary. The paper firstly recalls the historical evolution of the concept of the speech community, then discussesd the cognitive motivation of the concept of generalization of the speech community from the perspective of Langackers virtual boundary, which aims to enrich the study of the concept of speech community.

Key words: speech community, virtual boundary, information age, concept generalization

摘要： 言语社团概念源于索绪尔的《普通语言学教程》，发展于布龙菲尔德的《语言论》，完善于Labov、Gumperz和Hockett等语言学家。在信息化的今天，随着人们交流方式和交际渠道日趋多样化，言语社团成员的认同方式在空间、地域等层面呈现泛化特质，其概念边界随之移动，原有概念的边界消失，新概念的边界逐渐虚化。梳理言语社团概念的历史流变，从Langacker的虚拟边界出发，阐释言语社团概念泛化的认知理据，以丰富言语社团概念研究。

关键词: 言语社团, 虚拟边界, 信息时代, 概念泛化