Firstly,this paper retrospects briefly the internal relationship between the origination of double dual economy and environment pollution,and points out that in the early days of the founding of the repwblic,the government leap forward development strategy and imbalanced regional development strategy after 1978 have caused environment pollution and double dual economy structure.

In the dualistic economy, because of the development of the market economy and socialization production, the medical insurance of floating work force, especially of farmers, is more prominent.

Construction of urban and rural relationship should abandon traditional way of thinking of changing dualistic economy into a unified economy.

In deeply analyzing the actuality of the transfer of country labour force,the author raised some measures pertinent to this problem under a dualistic economy.

A Endogenous Growth Model of Dual EconomyAbout Rural Labor Transfer;

FDI and The Dual Economy Transition:A Theoretical and Empirical Study on Central China;

Analysis of current situation of Chongqing s urban-rural dual economy and its changing theory;

A Study on the Transform Tendency of Dual Economic Structure;

By comparing it with three other dynamical systems,it puts forword that making economy knowledge-incentive is the best choice in China to resolve the problem of dual economic structure for a long term.

Accordingly, as a basic feature of economic system, dual economic structure in China is also in urgent need of transformation, which has to be guaranteed by effective measures.