The construction of a unified social security system should be an important content for Chang-Zhu-Tan Agglomeration's developing. At present, the social security system in Changsha, Zhuzhou and Xiangtan is mismatched to the construction of energy-saving and environment-protecting society in Chang-Zhu-Tan Agglomeration. There is still a lot of questions to be resolved, such as the rural social security being weak aspect of the whole social security, the management system being decentralized and the various parts of the social security system ex...