Online education brings both opportunities and challenges to educational institutions. The current application of traditional intelligent mode is relatively backward, in the reform of English learning, but also pays attention to students' learning participation, which will directly affect their learning effect. Therefore, this article explores and offers appropriate recommendations. For example, the development of cloud collection technology, through the installation of classroom intelligent equipment, through intelligent voice system, identify each student's parameters and classroom environment, record students' learning state, then the machine learning results are applied to intelligent classroom management to improve the classroom time utilization rate and students' learning e ciency. The whole system also includes data acquisition equipment, management node, cloud server and cloud data management equipment platform. After designing the relevant system, this paper conducts a practical research on college students' English learning under the intelligent classroom environment. After practice, questionnaire survey was conducted on the construction and use of wisdom classroom. The data show that the use of wireless sensor network and intelligent voice system, and applied in intelligent classroom, greatly improve the students' learning participation.