An all-round rural social security system of China has a very important strategic effect on the Chinese development of agriculture and country, along with Chinese modernization construction. After decades of efforts, construction of the rural social security system of China has got the obvious achievements. However, many problems of the rural social security system still exist, which evidently reflect those fields such as the narrow coverage of social security, the low social security level and the limited financing channels of social security funds. In the following development, many measures should be taken to perfect the rural social security system of China, including clarifying the construction emphasis of the rural social security system, increasing the governmental investment in the rural social security system, setting up the unified management system of social security, doing well the propaganda and service work of the rural social security, as well as perfecting the supervision system of the rural social security.