Abstract: Nowadays, there is a formalist tendency of misusing the mathemetical methods in the research on our economic theories. This tendency has seriously deviated from the development path of science and has made economics lose its own character as a social science. It has resulted in the research on economic theories going astray and economic practice being misled. Therefore, we must keep up scientific research attitude and properly handle the relation between economics and mathemetics, the relation between qualitative analysis and quantitative analysis, the relation between static analysis and dynamic analysis as well as the relation between theoretical research and practical application. Thus we must make efforts to link the economic theories with mathemetical methods dynamically so as to serve the ecoromic construction of China at a higher level.