Bank efficiency is the contrast of the input and output of the costs and benefits in business activities, is an important measure of bank performance, market competition ability, input and output ability and sustainable development ability, efficiency value can reflect the bank's resource utilization efficiency and overall operation. At present, the small and medium-sized financial institutions in Jilin are in serious condition, not only to withstand the pressure of the state-owned banks, but also to do a good job in preparing for the entry of foreign banks. Therefore, it is necessary for us to carry out a comprehensive evaluation of the operational efficiency of small and medium sized financial institutions in Jilin Province, so as to understand the gap and the shortage, and improve the efficiency.