:语际语是在第二语言习得过程中产生的过渡性语言 ,实质上是一个渐进的语言系统 ,带有一定的规律性。对于它的研究的某些方面 ,如成因和出发点 (startingpoint)等 ,至今尚未取得公认的理论。本文介绍了这些方面的一般观点与笔者的管见 ,并根据语际语的性质和特点 ,指出语际语在第二语言习得中具有一定的积极作用 Interlingua is a transitional language produced during the second language acquisition. It is essentially a gradual language system with a certain regularity. For some aspects of its research, such as causes and starting point (startingpoint), so far, no accepted theory has been made. This article introduces the general view of these aspects and the writer’s opinion. According to the nature and characteristics of inter-lingual language, it points out that inter-linguistic language has some positive effects in the second language acquisition