“…Debt leverage refers to the debt financing of enterprises in their business activities, and for listed companies, there are two main channels of financing: debt financing and equity financing, and once an enterprise has a financial crisis, the risk will spread from the above two channels, and through the accounting linkage of the balance sheet, it will spread to other sectors, triggering systemic financial risk. Ma [4] argues that, compared with developed countries, although China's nominal leverage ratio is not high, the actual potential risk is not small, mainly because there is more hidden debt in China, while the growth rate of debt is also too fast, effectively resolving the high debt leverage ratio and preventing systemic financial risks,, is currently the top priority of China's financial supervision. From the perspective of debt rollover, Zhang Yilin [5] examines the mechanism of economic uncertainty on banks' debt rollover decisions and corporate leverage, arguing that banks' persistent increase in debt to insolvent enterprises to expand debt leverage will exacerbate economic uncertainty and will expand the potential for systemic financial crisis to occur.…”