Abstract: Landscape installation is the topic which draws heated discussions in recent years. Herein we attempt to combine digital tools and parametric thoughts with the landscape installation design field, and establish the system of Geometry Operation. The author start with introducing the basic concepts of Landscape and Installation Art to summarize the process of development and combination of the landscape geometry operation in traditional and digital way, and also give examples of practical projects in recent years. Then a set of digital landscape design tools collection is established for students to choose by compromising with the landscape design method. Finally, a specific teaching example is used to sort out a method and the process of using digital tools to design the landscape installation. To sum up, we anticipate that through the establishment of digital toolbox and design methods the practice and development of landscape architecture can be promoted.