This paper uses the Biennial Malmquist index and uses the enterprise data at the micro level to calculate the efficiency and technological change of the industrial enterprises in Beijing, after the statistical standard is raised. It not only provides a new way to define the technological innovation level and characteristics of different industries, but also verifies the view that China's industrial TFP is growing more dependent on technological change, rather than efficiency. As this situation is also prominent in small enterprises, the short-term behaviors of industrial enterprises in China are quite common, so the good market operation standards and positive long-term development environment are more important than the TFP growth of industry at the present stage.