目前世界上有5000多种语言濒临消亡,记录和研究这些语言是现代语言学的重要任务之一。卡维亚语是美国加州南部的一种濒于消亡的印第安语言,目前已不被使用,而只在一些老年人的记忆中存在。从20世纪20年代开始,一些德国语言学家致力于记录和研究这种濒危语言。这里主要介绍了这项研究的历史、方法和进展状况,并对世界各地抢救濒危语言的现状进行了综合评述。 At present, there are more than 5000 languages ​​in the world on the verge of extinction. Recording and studying these languages ​​is one of the important tasks of modern linguistics. Kavia is a dying Indian language in southern California. It is currently not used, but only exists in memories of some elderly people. Since the 1920s, some German linguists have devoted themselves to recording and studying this endangered language. The history, methods, and progress of this research are mainly introduced here, and a comprehensive review of the current status of rescuing endangered languages ​​around the world is conducted.