Nowadays, global integration has become a development trend, which has enhanced the mutual competition among banks. my country's Internet economy is very developed. However, in the face of a cumbersome and competitive market, the supply chain improvement level of many banks' financial services is very inefficient. Making the supply chain more complete can improve the efficiency of banks. Improving the supply chain system will help banks to be more sensitive and fully grasp of information, improve the accuracy of market demand forecasts, and facilitate the smooth production process and post-marketing. A perfect supply chain can effectively balance many problems between enterprises and suppliers, thereby greatly enhancing the economic benefits of enterprises. However, at present, under the banking supply chain financial business model, business development is basically offline, and financial data is often faced with information asymmetry. With the development of Internet technology, it has also played a positive role in the development of financial technology. At the same time, it also brings new ideas to the traditional supply chain financial model of banks. This article analyzes how banks can optimize their supply chain financial services in the Internet era, so as to achieve the effect of digital transformation of financial services.