Based on the survey of Chongren county Bailu village, Taihe county Yongchang village and by focusing on the system implementation costs, the public goods is divided into tangible products and intangible products these 2 parts to carry out a perfomance analysis of the supply of public goods in rural communities. It points out that in both the well-acquainted and rare-acquainted communities in rural areas there are some long-existing informal systems, such as religions. Because of their born nature, the system implementation costs are relatively lower. However, the implementation costs of the embedded foreign systems are relatively higher because of their weaker lasting features and the rare social basis. Therefore, proposing putting the efficient supply of public goods in rural communities into practice, there exist not only a need of enhancing the internal organization and coordination of the formal systems, but also paying attention to the correspondence and harmony existing between the formal and the informal systems, making good use of the informal ones. At the same time, the self-organization of the rural areas should be strengthened, their culture characteristics advocated, the continuities in drafting rural policies honored to realize the sustainable development of the rural communities.