Disruptive technological innovation has the characteristics of scientific breakthrough, long-period, alternative, explosive industry, and value transition, so it needs different policy support in different development stages. Especially for the government-oriented major disruptive technological innovation, it is necessary to give strong support in the development of key technologies and the creation of application scenarios. Intelligent transportation is a government-oriented disruptive technological innovation. With the transformation of intelligent transportation technology from basic technology systems and key technologies to technology integration, Its policy support has also undergone a transition from a supply-based policy that supports basic R D to a demand-based policy that supports application demonstration, and then to an environmental-based policy that focuses on fiscal preferences and industrial regulations. At the same time, this article believes that we should pay attention to the stage identification of disruptive technology and the opening of application scenarios, and improve the early cultivation policy and the later market guidance policy in order to better promote the generation and development of disruptive technology in China.