With the development of educational informatization and the continuous construction of educational informatization infrastructure, cloud technology is gradually applied to subject teaching, and the background of "cloud education" is spreading. At the same time, it also puts forward higher requirements for the curriculum teaching of various subjects. This paper studies the students at different levels through the teaching research method. The experimental results show that the biggest gain in the cloud classroom is that learning becomes easier and the knowledge learned is more solid. At the same time, it is also full of expectations for the cloud classroom in the new semester. English theory teaching under the cloud education platform model can not only effectively stimulate students' learning enthusiasm and interest, but also effectively integrate the learning resources of traditional education. Most importantly, it can optimize the learning process and change the teaching methods of traditional education.