Research on Dual Structure Dynamic Mechanism Model of Population Flow in The Process of China´s Urbanization

To aim at the limitations of the classical models of Lewis and Todaro in the analysis of China´s population flow. Begin with the mechanism model of dual structure dynamic mechanism of population flow. By comparing and analyzing P-N junction theoretical model and obvious dual structure factor existing in the process our country´s urbanization, combining with relevant theories and models of urbanization at home and abroad. Describing dual structure dynamic characteristic of population flow and building a new model of population flow in the process of urbanization. Finally, using Dalian´s data of population flow to check this model and achieving satisfactory results.