| In today’s society, there’s a new group that they lost their only child. Their problems are gradually increased; the pension problem is particularly prominent. The big problem is no one supports them. The purpose of this paper is by using the idea of the hierarchical design, researching their pension insurance, to solve the pension problems of the different levels of them.The first, systematically elaborating the current situation of the groups losing one-child, analyzing scale from their quantity; stratifying the structure of the groups losing one-child into the structure of urban and rural and the structure of income, respectively study their situation under different structure; then summarize the characteristic, including uniqueness, uncertainty, hierarchy. The second, analyzing the problem of the pension insurance of the groups losing one-child in our country, mainly include:the problem of scale that the total gap is larger, the pension is insufficient; the problem of structure that there are many differences between the coverage degree of groups, different levels of the groups expose different problems. Then analyze the causes, including differences in income, lacking of social pension insurance premium, the national pension security system is imperfect, and the influence of the family planning policy, etc. The third, based on current situation of the international pension insurance, learn the policy of pension insurance from the developed countries such as America, Britain, Germany, and seek solutions to solve the problem of the pension insurance of the groups losing one-child. Finally, discuss the necessity to hierarchically design the pension insurance of the groups losing one-child, and put forward the specific design scheme, expounding in two parts, which is social pension insurance and commercial pension insurance. In the end, look forward to implement the feasibility about hierarchically designing and researching on the pension insurance of the groups losing one-child. |