Abstract: Launching large-scale national land greening is a crucial measure for building an ecological civilization and a beautiful China, and it also serves as a vivid practice of implementing the concept "lucid waters and lush mountains are invaluable assets". Taking Kunming city as an example, this article analyzes the existing problems in national land greening, formulates the technical route for the high-quality development of national land greening, constructs the pattern of national land greening, and plans 4 key projects and 10 technical measures. Furthermore, it puts forward suggestion for the high-quality development of national land greening from aspects such as optimizing spatial layout, strengthening technological innovation, integrating industrial development, and establishing a long-term mechanism. The purpose is to provide reference for the planning and high-quality development of national land greening in Kunming city in the coming period.