| The dual economic structure is the typical character in the process of our country's economic development, finance has played an important role in the transformation of dual economic structure. There is the phenomenon of uneven economic development between regions in China, in view of this point, this article focuses on the transformation of the relationship between finance development and dual economic structure based on the interprovincial level.First, using the theories about both the finance and the economic , to build a theoretical framework of the article, from the accumulation of capital, the technological innovation and the allocation of financial resources to analyze the role of financial development on the path of the dual economic structure , according to the theory of mathematical models, it has not only verified the conclusions of theoretical analysis, but also discovered that the effect of financial development which can promote the transformation of dual economic structure, is caused by the hindrance effect and the promotion effect synthesisly.Using each province's data to carry on the time series analysis, mainly using the descriptive statistical analysis, unit root test, co integration test and other analysis techniques and the establishment of the VEC model, and carrying on the pulse response function analysis, to obtain the overall development of China's finance within a short time can promote the transformation of a dual economy, but in the long term, it cannot promote the transformation of a dual economy, while the efficiency of the overall financial development of China has a positive effect on the dual economic structure. In order to examine the effect of financial development which can promote the transformation of dual economic structure in various provinces further, this article has carried out the empirical analysis based on panel data, mainly utilized the various analysis techniques such as panel data unit root test, fixed effects models, random effects models , and discovered that in parts of provinces of China, economic growth alone cannot automatically promote the transformation of dual economic structure ,the amount of financial development can have both a promotion effect and a hindered effect on the transformation of the dual economic structure in various provinces and cities, while the efficiency of financial development can promote the transformation of the dual economic structure. Finally based on the empirical results, from the organizational level of financial development, point of view of monetary policy, improving the regional financial ecology and improving the regional capital market system and other aspects, to conceive regionalizing differences in financial countermeasures. |