Abstract:With the gradual advancement of urbanization in China, especially under the tone of high-quality development to adhere to the conservation and intensive use of land, strictly to control the addition of construction land, to increase the potential of stock land and to improve the land use efficiency, the urban construction in China is turning to a new stage dominated by stock renewal. The development of cities cannot be separated from the support of transportation. Therefore, in the context of new urban renewal, exploring how to improve the function of urban expressways is a very worthwhile research topic. Taking the improvement of the function of the Putuo section in the Outer Ring as an example, the main contradiction between the regional development and the construction form of the Outer Ring is analyzed. The necessity of improvement is demonstrated from the aspects of reconstructing the regional trunk road network, improving the road network function and suturing the urban land in detail, and the detailed scheme of function improvement is further proposed, which provides the reference for the functions improvement of the follow-up similar projects.