Contemporary society gave birth to pollution environment, family collapse, estrangement human-being, and serious disequilibrium. Sustainability and community are core issue of developmental 21st developmental society. As the alternative plan came up needs of the times, community garden is able to make practical application of elevating life quality for residents as well as get various beneficial effect. Community garden was attempted to settlement, failed it in Korea, while made good use from old times in Germany, U.K., and U.S.A. Participation and conversation intrapopulation are a key factor to use, maintain, and preserve. Consequently, This study was performed to develop leader training program that took charge of primary role in activating community garden. Organization which deduce outcome and motivate, as the core competence of leadership, was composed of horticultural information and actual experience to horticulture.