The application of three-dimensional digitization in orthodontic teaching provides technical support for improving the efciency of orthodontic teaching. Compared with conventional teaching, three-dimensional digital teaching can better meet the needs of domestic orthodontic medical treatment. In the specifc teaching practice, starting from three-dimensional digital analysis software, cone beam CT, digital dental model and three-dimensional facial imaging technology, we can comprehensively improve the teaching quality in orthodontic teaching and provide feasible reference for orthodontic teaching.