JCERJournal of Contemporary Educational Research2208-84662208-8474Bio-Byword Scientific Publishing Pty. Ltd.10.26689/jcer.v4i3.1111Articlehttps://artdesignp.com/journal/JCER/4/3/10.26689/jcer.v4i3.1111HeDaji2020432020-03-27Interlanguage Theory was first proposed by Selinker. It refers to the bridging language between the source language and target language constructed by the second language learners, which is a constantly dynamic moving toward the target language. Chomsky’s Universal Grammar (UG) has played an important role in expaining the native language acquisition. This paper, on the basis of UG’s impact on the native language, focuses on UG’s influence on the interlanguage development.