Beipanjiang Bridge is located between the V-shaped deep gorge, the bridge floor 280 meters above the water, the main span of 236 meters, is the world's largest single-line bearing concrete-filled steel tube arch bridge. The construction of the bridge adopts the single hinge rotating construction method, the Liupanshui half-arch rotates 135°, the Boguan half-arch rotates 180°, and the half-arch rotating weight is 10,400 tons. This paper focuses on the rotating structure, stress analysis, control and tension of the upper plate.