The characteristics of steel pole are beautiful, simple and durable. The tower design is an important part of the project design of overhead transmission lines, which directly affects the safe operation and cost of the transmission lines. According to statistics, the cost of steel poles accounts for about 37% of the total cost of the transmission line project. In the transmission line project, the proportion of the total number of steel poles in straight line steel poles generally reaches 80%, which has a great influence on the construction cost of the project. The longer the line, the more obvious the effect is. Therefore, according to the “Technical Design for Steel Poles for Overhead Transmission Lines”, under the premise of ensuring quality and safety, the design is technologically advanced and economically reasonable.