With the development of language teaching,multimedia has been widely used in college English teaching.Introducing the multimedia into English teaching is an inevitable trend of the development of English teaching.However,we have seen many difficulties and misunderstanding in the application of multimedia.This paper is focused on how to build up a better language teaching environment assisted by multimedia technique,and how to use multimedia in college English teaching effectively. With the development of language teaching, multimedia has been widely used in college English teaching.Introducing the multimedia into English teaching is an inevitable trend of the development of English teaching.However, we have seen many difficulties and misunderstanding in the application of multimedia.This paper is focused on how to build up a better language teaching environment assisted by multimedia technique, and how to use multimedia in college English teaching effectively.