Due to the inconvenient traffic on both sides of the Shanghai Huangpu river, the east Yan'an road cross-river Tunnel was built at the bottom of the Huangpu River. The total length of the tunnel is 2261.0 meters. The middle of the tunnel is a circular main tunnel. The two ends of the main tunnel are constructed into rectangular tunnels. The two ends of the tunnel are open-air approach road sections where vehicles enter or exit the tunnel. This program focuses on the construction process of the east Yan'an road tunnel in Shanghai.