Smart classroom is a new classroom form constructed by the deep integration of information technology and education, and is an important way to solve the problem of low efficiency in higher vocational English teaching. This paper analyzes the reasons for low efficiency in current higher vocational English teaching from three aspects: insufficient learning motivation caused by “subject dislocation”, discretization of learning resources caused by “information island”, and failure to fully reflect learning effects due to “result-oriented evaluation”. From the perspective of a smart classroom, it puts forward reform strategies including resource integration and precise push based on a knowledge graph, a collaborative interaction mechanism of “teacher-student-smart platform” based on the BOPPPS model, and personalized tutoring through data tracking, so as to build an efficient teaching paradigm for higher vocational English and provide a theoretical framework and practical roadmap for the digital transformation of higher education.