1 the meaning of financial riskYe at "small and medium-sized financial risk assessment and control of research" that the financial risk is the possibility of corporate insolvency and shareholders, the proceeds of uncertainty, it is difficult because of enterprise funds, to adopt a different mode of financing brought about by from the analysis of financial risk on its meaning, characteristics and types of content; at this based on the causes of the financial risk to conduct in-depth analysis and detailed research, analysis concludes that the financial risks arising from internal factors and external aspects; in turn, establish a risk awareness, the establishment of an effective risk prevention mechanism; set up and improve the financial management system to meet the financial management of environmental change; set up the financial risk early warning mechanism, strengthen the financial crisis management; improve the scientific level of financial decision-making to prevent due to poor decisions arising from the financial risk; through internal systems to prevent the establishment of binding mechanisms to control and guard against financial risk in five areas of financial risk prevention measures as well as self-insurance, diversification of risk control, risk transfer, risk averse, risk reducing the five techniques. Only controlled enterprises to guard against and defuse financial risks, in order to ensure that enterprises in the fierce competition in the market in an invincible causes of the financial risks(A) external causes1, the national policy changes brought about by the financing risk. Generally speaking, small and medium-sized production and operation because of instability. A country's economy or monetary policy changes, there may be small and medium-sized production and management, market conditions and financing forms have a certain impact. Beginning in 2007, our country has increased the intensity of macroeconomic regulation and control, the central bank to raise the fourth time the deposit reserve ratio, in particular, are ready to implement the difference between a direct deposit system to make small and medium-sized service-oriented small and medium-sized commercial banks to tighten credit, SMEs First of all, the capital supply disruption, the risk of inviting a lot of financing, SMEs also in urgent need of funds can not be forced to stop production or the scale of downsizing. 2, bank financing channels for non-financial risks caused by fluid. Corporate sources of funds are nothing more than its own funds and external financing in two ways. In various modes of financing, the bank credit is also an important source of funds, but banks in the country's financial policies as well as their own sound system is not under the influence of such circumstances, the general enthusiasm for SME lending is not high, their loans more difficult to increase the the enterprise's financial risk.(B) internal factors one, blind expansion of investment scale. There is a considerable number of conditions are not ripe for the SMEs in the circumstances, only the experience of one-sided pursuit of companies to determine the expansion of the extension, ignore the company's content and core competitiveness, resulting in a major capital investment wasted. 2, the investment decision-making errors. For business, the correct selection of industries are the starting point for the survival and development strategy. However, some industrial enterprises in the selection process, the often overlooked "industry is a dynamic selection process" concept, should not a keen grasp of industry trends and direction of evolution. 3, improper selection of investment partners. Enterprises to make investment decisions, we must give full consideration to qualified partners, reputation, and should have to bear the corresponding risks. 4, less than honest. Lack of SME credit is a common situation. Therefore, small and medium-sized banks to provide loans or investments to small and medium-sized people had to step up investment on human resources in order to improve the quality of information collection and analysis. This respect has increased the investment bank or person lending and investment costs. On the other hand also give small and medium enterprises financing difficult. Ability to finance capital, to finance the number of funds, the financing of SMEs exist great uncertainties.