Longdong Avenue is located in Pudong New District, Shanghai, and is an important east-west passage in the expressway network system of Shanghai, in which the node of Outer Ring Road is the important traffic node of Longdong Avenue. It is proposed to reconstruct it into a hub-type full interchange. Based on the traffic flow survey before the reconstruction of this node and the design scheme of the interchange reconstruction, two construction schemes of staging closing and full closing are designed, and are compared and selected from the perspective of the influences on the construction period and traffic. Finally, the full-closed construction scheme with the largest benefits is selected. At the same time, based on the construction scheme, and aiming at the traffic flow into and out of Outer Ring, the traffic organization in the construction period is designed.