With the development of computer technology and the popularity of the Internet, the construction of the corpus research has made remarkable achievements. ESP Corpus linguistics, which also developed very fast, has gradually become the research hotspot of corpus linguistics. On the basis of the background and meaning of pharmaceutical English corpus, this paper introduces the ideas and ways to create a corpus for pharmaceutical English teaching. Using corpus retrieval software AntConc, the application of this corpus in pharmaceutical English vocabulary teaching are discussed in this paper, aims to explore from the perspective of pharmaceutical a new means of English teaching.