Abstract: The design quality of transmission line tower structure has a direct impact on the reliability and safety of power grid line operation.It is the key to the safe operation of power grid.In fact, it is necessary to combine various factors to design the optimal transmission line tower structure to ensure the high-quality operation of the transmission line.Therefore, according to the importance of pole and tower structure optimization design and the type of pole and tower load, the design of transmission line pole and tower structure in China is analyzed, and the optimization design strategy of transmission line pole and tower structure is proposed.Provide reference for future development direction.