China’s pension insurance system reform has made great achievements during the 12th Five-year Plan period，including basically realized the full coverage of pension insurance system，as well as built two basic system platforms，which are pension insurance system for urban workers and for urban-rural residents. In the background of new-typed urbanization，based on the review and summary of the achievements，this article discussed the integration，choice and consolidation of the two system platforms，analyzed the necessary and the problems of pension insurance system reform，and pointed out that China’s pension insurance system needs further change. In the coming 13th Five-year Plan period，we need do top-level design of reform and innovation better，adhere to the route of “two-way advancement”，“small integration” and “major integration”，fully establish a national united as well as urban-rural united pension insurance system with a combination of basic pension and individual account，complete Chinese orientation and consolidation in pension insurance system，further to improve urbanization mechanism，so as to provide a solid institutional guarantee for new-typed urbanization and the building of a well-off society in an all round way.