Abstract As an online virtual learning environment based on virtual reality technology, the 3D virtual classroom provides a complete learning system for students to study, discuss, and collaborate, which can better improve their English language skills. The article firstly researches the 3D visualization modeling technology of Multigen Creator, and then the 3D virtual classroom environment is embedded in the network to complete the construction of the basic English teaching environment, which can help students to complete the English communication and collaborative learning in the virtual classroom environment. The article concludes with an empirical test of the application effect of using the virtual classroom environment in English language proficiency improvement and finds that after using the virtual classroom environment for English learning, students’ comprehensive language proficiency is improved, which is reflected in the improvement of language expression ability, and students’ total average score is increased from 3.03 to 3.50 points. The pre-test showed an increase in the student’s language learning experience from 2.96 to 3.83 points. It can be concluded that virtual reality technology plays a good role and influences in improving English language proficiency.