The purpose of this study was to provide basic information for those who are interested in applying horticultural therapy to the elderly, through the current status of horticultural therapy research and its findings for Korean elderly. For this purpose, we utilized content analysis centering around all of academic theses and articles related this topic. This study suggested the future tasks for programming and research of horticultural therapy for the elderly. First, institution, accommodation and professional manpower should be maintained to fix programs of horticultural therapy in welfare institutions for the aged. Second, interdisciplinary studies among horticulture, health, psychology, sociology and social welfare should be required to do multiple research relevant to development of horticultural therapy and its application. Third, more studies on inter-generational program of horticultural therapy and its effect comparison on different kinds of older population should be recommended. Finally, multiple research designs and qualitative research methods should be more utilized in future studies.