Abstract: Based on the 10-year data of financing and added value in three major regions of Jiangsu Province, this paper uses DEA-Malmquist model to measure the efficiency of Jiangsu financial service entity economy. The study finds that there are regional differences in financial services for entity economy, and that too high or too low financial a "leverage ratio" will be detrimental to the development of entity economy. At the same time, the panel data of three regions are used to test the influencing factors of financial support for entity economy. The results show that direct financing has a significant effect on improving the efficiency of financial support for entity economy.