In order to improve the effect of rural landscape design, this paper uses intelligent digital computer-aided technology to improve the traditional rural landscape design mode, and through the combination of scene and emotional experience, environment and artistic experience, science and education experience, enrich the core of experiential landscape design and create diversified landscape space. Moreover, following the “naturalness” of nature and humanities, this paper makes a comprehensive and overall point-line-surface natural darning of rural environmental landscape from three levels: building a “point-like” landscape vision, planning a “line-like” path for sightseeing, and constructing a “surface-like” texture style. In addition, three-dimensional landscape design uses tree-like nodes of the physical organization structure and uses node distribution to achieve the construction of each element. Through the simulation test, we can see that all the functions of the system constructed in this paper can run normally, and the system not only has fast response speed and stable operation, but also has a good design effect.