Landscape design is a measure of the development of urbanization process and the improvement of people's happiness index. The process of urbanization will involve landscape design. The study and teaching of landscape design is the core teaching method of landscape design research. However, with the diversified development of landscape design schemes and the characteristics of landscape 3D schemes, traditional landscape teaching schemes can no longer meet the needs of students and teaching, which also limits the effect of students' understanding and learning of landscape design schemes. Digital technology has been widely used in the field of landscape design, and has shown good results. This research uses the artificial intelligence method of digital technology to study the relevant factors in the teaching task of landscape design. This article mainly discusses three characteristics of students' design preference, landscape layout, and landscape pattern in landscape design teaching, which are also important factors affecting landscape design.