Abstract: China is a developing country such an economic transition and is going through the country, in the face of economic globalization and how to guard against financial risks to safeguard financial security is an important theoretical and practical significance, and the very serious Because the US sub-loan crisis and the gradual spread of the global financial tsunami, such as the domino-like attack on the entire world financial system, which allows systemic financial risks of growing concern In this context, how to guard against and defuse financial risks of the systemic issues are increasingly important to all countries in the This paper attempts an analysis of systemic risk to the starting point, expect the status quo of the systemic financial risks, causes and preventive measures to study ways to stabilize and develop China's financial market with their own In the paper the structure of this paper, first of all, the current overview of the global economic environment, in this context, the systemic financial risks from the start with the definition and connotation, through domestic and foreign experts and scholars on the definition of systemic financial risks to sort out and compare so as to arrive at its essential On this basis, the analysis of the factors affecting financial stability, compare the history of the systemic financial risks many times the process occurs, and the essential character of the cause to achieve the recognition of systemic risk, and understanding of these characteristics on the basis of the combination of a number of countries, risk management and prevention of the relevant experience, the resulting systemic risk-based regulatory philosophy and the perspective In this paper, to be conducted to explore Keywords: systemic risk risk management sub-loan crisis