Abstract: Abstract: The change of industrial structure is an important feature of the development of the economy. Meanwhile, the Input-Output Model is an economic quantitative analysis that examines the co-relations between different industries and analyzes the macro-economic status of a nation or a region. When facing the global financial crisis, to use the Input-Output model in analyzing the relations between financial industry and other industries has become an important method to discover the internal mechanism. This thesis chooses three indicators-intermediate input, influence coefficient and reaction coefficient-to analyze the development of financial industry in Beijing and Shanghai under the global financial crisis. This paper finds that the risk of industries is lower in China but the risks will be higher in Beijing and Shanghai. Agriculture should been maintenance. Key words: Input-output, financial industry, intermediate input, China, Beijing, Shanghai.