With the generational shift of floating population，Cenozoic migrant workers has become the main force of the floating population. They are an important force to support the city’s economic development，at the same time，have been the emphases，difficulties and breakthrough of urbanization development in the new period. In fact，most of the floating population hope to be townspeople，especially the new generation of the floating population. But due to the current policy and institutional constraints，the process of urbanization of new generation floating population is slow. Therefore，the government should pay attention to reform of various policies，by ensuring their education，health care and housing to make a breakthrough for the barriers which prevent the urbanization.