Abstract:In the face of the economic development of the new normal. The 13th Five-Year Plan of jiangsu province clearly put forward to speed up building a new system of modern industry,the industry in the province towards a high level,realizing the optimization and upgrading of industrial structure. Therefore, studying how to play the financial development to promote upgrading of industrial structure in jiangsu province has realistic significance. In this article, Based on the selected measure the indicators of financial support and upgrade of industrial structure in jiangsu province,and the cointegration test on the various variables,building the VAR model and Granger causality test. The results show that there is a long-term equilibrium relationship between the financial support and upgrade of industrial structure in jiangsu province,financial support is a Granger cause of promote the upgrading of industrial structure in jiangsu province,financial support is an important booster of the optimization and upgrading of industrial structure in jiangsu province..Accordingly, puts forward some policy suggestions for the better use of financial development to speed up the transformation and upgrading of industrial structure in jiangsu province.