The planning of Hainan Branch Institute of Medicinal Plant, Chinese Academy of Medical Sciences (hereinafter referred to as "South Chinese Herb Garden") requires the integrated functions of scientific research, education, science popularization and propaganda, tourism sceneries, demonstration of production activities, thus the whole design should target at constructing multi-functional garden landscapes, utilize South Chinese herb resources, so as to build a knowledge-based tourism garden with dominant functions of scientific research, science popularization and sightseeing. The authors always insist that ecological thoughts should be borne to construct multi-functional sceneries with proper layout, elegant and honest landscapes, the construction of infrastructures and service system should be attached more importance in garden planning, functional division should be done according to actual landforms, constructions and functional demands, to form a healthy, environment-friendly and modern landscape system that can meet the demands for scientific research, education, science popularization and propaganda, and sightseeing. Through elaborating the design thoughts and principles of South Chinese Herb Garden, its design process, basis of regional planning and functional division, garden beautification means as well as road landscape designs, this study shows the ideas and ways of designing multi-functional garden landscapes.