Abstract: This article takes the 110 kV four circuit steel pipe pole as an example to study the transformation of line conductors from vertical arrangement to horizontal arrangement, aiming to meet the planning requirements of local governments, while saving land resources, reducing engineering costs, avoiding duplicate construction, reducing damage to the natural environment, reducing the impact on the surrounding environmental landscape, and reducing power outage time of transmission lines. It is in line with the construction concept of "two types and three new" power grid construction, This project can be applied to engineering practice and achieve good economic benefits and social significance. Through comparative analysis, the method of changing from vertical arrangement to horizontal arrangement is feasible, safe and reliable, suitable for various practical situations, and worthy of our promotion and use.