Since the early twenty-first century, many large bridge pylons have been built in China. The manufacturing technologies of bridge pylon, and the research, development and application of the related equipment are becoming more mature. With the development of society and economy, the steel pylon is also more and more used in the construction of urban small and middle-span bridges because of its good landscape effect, small in-situ construction disturbance, factory-like manufacture and other advantages. Taking the construction of Wuhan Optics Valley High-tech Bridge as the background, the structural form and characteristics of steel pylon in the project are introduced, and the difficulties in the production of steel pylon are analyzed. The key technologies such as the manufacture of outer wall plate, the manufacture of steel pylon segment, the consolidation of steel pylon and beam section, and the overall pre-assembly of segments are analyzed and studied to solve the difficulties in the accuracy control of steel pylon alignment and segment matching, which effectively ensure the manufacture and installation qualities of steel pylon, and also have certain reference significance for the manufacture of similar steel pylons.