With the development of modern society, English is an international communication language, and many colleges and universities have gradually begun to pay attention to the reform and innovation of English teaching. With the continuous emergence of emerging technologies, the reform direction of college English teaching has turned to the construction of informatization and intelligence. This article mainly analyzes the meaning of smart classroom, and the application practice of smart classroom in college English teaching, and it also studies the design of multimedia teaching system in college English smart classroom.