In recent years, the development of network information for the reform and development of education has played a great role in promoting. At present, the mobile Internet, becoming the number one choice of access to information and communication way, the development of mobile Internet information technology for the development of the education sector to provide more opportunities for mobile, fragmented, individualized education, socializing, features a new mobile Internet era of education. Young students as a mainstream mobile Internet user base, but also the direct object of English teaching, the traditional English teaching model can not meet the needs of young students, how to mobile Internet applications to English teaching is currently facing a major college English teaching problem. In this paper, the efficiency of learning in the mobile Internet era, the reform of college English teaching on how to improve college English outside the classroom in depth discussion and research, and put forward the corresponding strategies and methods of reform. First, recognize that the mobile Internet Mobile Internet, mobile communications and the Internet is to combine the two into one. Open and highlight the 4G era of mobile terminal equipment will inject huge amounts of energy for the development of mobile Internet, mobile Internet industry in 2014 will bring an unprecedented leap. Mobile Internet is a smart mobile terminal by using a mobile wireless communications services to obtain business and emerging business, including terminals, software and applications at three levels. Terminal layer including smart phones, tablet PCs, e-books, MID, etc; software including operating systems, middleware, database and security software. Application layer including casual entertainment, media-tools, business finance, culture and education etc. Different applications and services. As of January 2014, the total number of China's mobile Internet users reached 838 million, in the mobile phone user penetration rate of 67.8%; the scale of mobile phone users reached 500 million, more than eighty percent of the total number of Internet users, the phone maintains the first big Internet terminal status. Development of China's mobile Internet era into the universal. According to the Chinese mobile Internet users Research Reports statistics, more than 800 million mobile Internet users, groups of students are the main force, accounting for up to 80% ratio.