How to use big data technology to promote the integration and complementarity of English online education and offline education has become an urgent problem in the field of higher education. This paper mainly studies the integration and complementary strategies of online and offline English education in higher vocational colleges based on big data technology. This paper first analyzes the current situation of English teaching in higher vocational colleges, then discusses the application of big data technology in online English education in higher vocational colleges and puts forward relevant strategies of integration and complementarity. Finally, it expounds the important role of big data technology in promoting the integration and complementarity of online and offline English education in higher vocational colleges. In the future, we can further strengthen the application depth and breadth of big data technology in higher education, so as to promote the reform and development of English teaching in higher vocational colleges and improve the teaching quality.