Tianjin Haihe Bridge is an important node in the middle section of the second phase of Tianjin Coastal Expressway Jishugang Road. The main bridge adopts single-tower double-cable-plane mixed-beam cable-stayed bridge, the main tower adopts diamond tower, the main span adopts orthogonal-bridge panel steel box girder, the side span is prestressed concrete continuous box girder, and the span arrangement is 310+2×50+2×40m. The new Haihe River Bridge and the existing Haihe River Bridge are antisymmetric. It not only meets the function requirements of port evacuation, but also takes into account the overall landscape needs. This paper introduces the general design of the bridge and the key technical points in the design.