As a very important part of modern enterprise management, enterprise risk management can improve the overall efficiency and competitiveness of enterprises by managing risks. However, with the accelerated development of globalization, digitalization and networking, the risks faced by enterprises are diversified and complex, so enterprise risk management needs to be constantly innovated and improved on the basis of tradition. As a part of enterprise risk management, internal control has its own uniqueness, and the two are interrelated. This paper analyzes the relationship between enterprise risk management and internal control and corporate governance through theoretical analysis, and selects BP Oil Company's oil spill incident and Tokyo Disney exchange rate fluctuation risk as a case to further analyze the relationship between risk management and internal control. By analyzing the problems existing in the actual management of enterprises, we can find ways to improve their operational efficiency and reduce their operational risks.