At present, the world is undergoing a major change that has not been seen in a century. How to deal with the increase in environmental uncertainty has become an important problem facing the high-quality development of Chinese enterprises. Chinese enterprises generally face financing constraints, and weak debt financing channels hinder the process of high-quality development of enterprises. How to improve debt financing capabilities has become a practical problem that Chinese enterprises urgently need to solve in response to the increase in environmental uncertainty. This paper first introduces the concept, characteristics and common patterns of supply chain finance , and also explains the definition of uncertainty environment and its impact on corporate operations and financing. By systematically combing through relevant domestic and foreign literature, this paper summarizes the results of existing research on supply chain finance, uncertainty environment and corporate debt financing behavior, laying a theoretical foundation for subsequent analysis. Secondly, this paper demonstrates the specific application of supply chain finance in an uncertain environment and its impact on corporate debt financing behavior through case analysis. By analyzing the success factors of these cases, such as risk management, support from financial institutions and technological innovation, the application value of supply chain finance in an uncertain environment is revealed. It is hoped that theoretical support and practical guidance will be provided for policymakers, financial institutions and enterprises to promote the development of supply chain finance and promote sound financing of enterprises.