Finance is the core of modem economy, financial increasingly impacts on all aspects of China's economic and social life. In this paper, the empirical result shows that the per capita GDP and the proportion of secondary and tertiary industries has a significant impact on the financial rate through the establishment of the regression model and Granger causality test on the relationship between financial structure and economic growth in Zhejiang Province. And it also point out that the optimization of the financial structure will promote economic growth, moreover economic growth promote the optimization of financial structures through optimizing the economic structure, there is a dynamic interaction and circular relationship between the two. The empirical results suggest that Zhejiang Province should made great efforts in applying financial reform qualification, and actively develop the capital market of stocks, bonds, need to pay much more attention to the development of secondary and tertiary industries, establish and maintain good health legal economy market in Zhejiang Province.