Abstract:As an effective carrier of technological innovation and scientific research transformation, the small and medium high-tech enterprises are developing rapidly in recent years. They are playing increasingly important role in the leading emerging industries, upgrading of traditional industries and breaking the bottleneck of industrial technology, and bringing a strong force for the development of the national economy. However, for a long time, financing problem have been hindering the development of enterprises, and becoming a bottleneck to business growth and expansion. The reason is due to small scale, less tangible assets, and high operational risks, which lead to 'credit crunch' of banks and other financial institutions, or very cautious attitude of the external venture capital investment. In order to reduce the information asymmetry between the two sides, avoid moral hazard and adverse selection, and solve the financing problem, there is an urgent need for scientific evaluation of credit conditions for small and medium high-tech enterprises, as the basis for external investment agencies to invest.