since 1960s, Chomsky’s TG grammar has become more and more influential. And in 1979, Neil Smith and Deirdre Wilson published a book entitled “Modern Linguistics: The Results of Chomskyan Revolution”. From then on, it became a controversial topic about whether TG grammar was a revolution or not. This paper defends that Chomskyan theory represents a revolutionary approach to the study of language, which was mainly contained in Syntactic Structure. Since 1960s, Chomsky’s TG grammar has become more and more influential. And in 1979, Neil Smith and Deirdre Wilson published a book entitled “Modern Linguistics: The Results of Chomskyan Revolution.” From then on, it became a controversial topic about whether TG grammar was a revolution or not. This paper defends that Chomskyan theory represents a revolutionary approach to the study of language, which was mainly contained in Syntactic Structure.