With the rapid development of e-commerce technology, e-commerce enterprises, especially B2C enterprises, have sprung up. This competition based on e-commerce technology has changed the traditional supply chain model and improved the operation efficiency of the supply chain. However, with the use of e-commerce technology, the supply and demand relationship between e-commerce enterprises has become extremely complicated. The original risk management system in the past has long been unable to adapt to the development needs of e-commerce enterprises in the new era. In view of this, it has far-reaching practical significance to actively carry out research on supply chain risk management for e-commerce enterprises, especially for B2C enterprises. In this research, on the premise of some previous theoretical and practical results, a B2C enterprise supply chain risk identification model is established by means of the research on SCOR, namely, the supply chain operation mode, combined with the characteristics of the B2C enterprise supply chain. The comprehensive evaluation method is used to evaluate the supply chain risk. Finally, an empirical study is carried out with J Company, which represents the B2C enterprise, as an example, which proves the applicability and reliability of this model. The results of this study have a certain reference value for the identification and control of B2C enterprise supply chain risks and also an inspiration for future research.