With the continuous deepening of college English teaching reform and the rapid popularization of wireless communication technology, the new English teaching model based on big data technology and Internet technology provides unlimited development space for the cultivation of college students' English level. This paper analyzes the construction ideas and architecture design of college English education platform based on big data and "Internet +", and carries out learning behavior analysis and research combined with the platform. As can be seen from the effect analysis chart, the system designed in this paper can meet the needs of users. Meanwhile, the author will continue to transform and optimize the platform system, focusing on the improvement of platform functions and performance. The big data age definitely provides the reformation and renovation for teaching and learning methods. Establishing a Pattern of Mobile Assisted Language Learning is expected to be adopted as a major aided way of teaching and learning and a valid approach of self-learning as well. Generally, in the process of English teaching and learning in college, a frame of MALL is built reasonably under the theory of mobile assisted learning, by which the students' enthusiasm, enlistment, ability of self-learning and teamwork learning can be enhanced from all aspects.