In the rural area of Okayama prefecture, agricultural population has undergone a constant decrease and aging for years. Recently, community farming is attracting more attention as a possible countermeasure to such circumstances. In Japan, community farming is defined a model of agricultural production in which a group of farmers in a village signs a contract of coalition and integration of production process in order to secure and effectively use the farmland. In this paper two approaches of community farming are examined in detail. One is developed in Miwa district in So-ja city in which one type of group production was initiated to deal with the governments request to fulfill so called crop conversion. Another is an example in Horisaka district in Tsuyama city in which the corporation of collective farming was formed to promote infrastructure development for vitalization of agriculture. Both cases, according to my field survey, share a common trait. That is, the existence of a close-knit community is the main backbone of support for the relatively successful result of their production.