After the reformation and opening, China moves from planned economy towards market economy. Active development of merchandise market and affection of loose household register system promotes the enormous population flow between town and country. However, the research found out that there are deep problems existed in population movement that need to be solved. These problems included the shifting of labor force from farming industry, the employments, managements and services of floating population in urban areas, as well as the reforms and innovations on the duality household registration system in the urban and rural areas. Particularly, it would be a good proposal to solve the ¡§Tri-Agricultural Problem¡¨ and city development at this particular period. This research probed into the increasing factors and development features of the floating population and emphasized mainly on the analysis of positive and negative influences to economic and society development. How to properly plan the population movement towards the modernized development aim of China is what this research about to discuss. The research is to discuss theories related to population flow. However, push and pull theory is commonly used in the world. In accordance with the idea of ¡§Equal emphasis on agriculture and industry, equal development of town and country¡¨ of developed economy M. Todaro Model, lifting agricultural productivity, improving rural life conditions, and shortening difference between town and country will ultimately make duality disappear and is practicable to the economic development with Chinese characteristics.

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