The paper summarizes the current college English teaching mode researches and practices, that is the integration of computer and networks into college English teaching, in the wake of Ministry of Education issuing college English curriculum, which proposes computer & network and classroom based English teaching mode in 2004. Computer and network, as the most important part of information technology, is the carrier of information, which can provide abundant interesting, vivid, interactive, humanistic, and learning materials for foreign language learners. The thesis aims to comb the related problems of integration and address the college English teaching under the background of computer and network. Based on the author's teaching experience, it aims to add some ideas into the study on the roles of computer and network in foreign language teaching and learning.