This study focuses on the cutting-edge field of Large Language Model. Artificial Intelligence-assisted English teaching has been under-researched and conflicted with the practice of English language teaching. To better address this problem, researchers read relevant literatures, design several formulas, test, compare, and select a new and efficient Large Language Model based on the existing transformer model. This can be deeply integrated with the theories of pedagogy, psychology, and linguistics in real English teaching environments to promote the innovation of the English teaching mode. It also demonstrates how Large Language Model can be used as a powerful tool in English language teaching and learning.