Taizhou Bridge is the first three-tower two-span suspension bridge with spans over 1 000 m in the world. Its main spans are 2×1 080 m; the middle tower is a steel frame with longitudinal herringbone shape and lateral gate shape; the side towers are gate shaped concrete frames; the stiff girder consists of flat streamline steel box girders, with a total of 136 steel box girders of about 33 426 t for the whole bridge. This article determines the proper lifting sequence of steel box girders of this threetower suspension bridge by analyzing the effect of steel box girders lifting sequence on structural system and difficulty in construction .