Abstract: With the rapid development of the market economy, the electricity required for social production and daily life is gradually increasing. At present, 110 kV transmission lines are more and more widely used in power systems. At the same time, 110 kV transmission line construction is the focus of the development of the power industry. With the gradual increase in the construction scale of 110 kV transmission lines, various construction techniques have emerged in the construction process. problem. In order to ensure the normal operation of power transmission lines, attention should be paid to construction technology issues and a safe and reliable power transmission grid should be established. So as to meet the needs of social production activities and daily life, and ensure the safe and reliable operation of the power system. Based on this, this article discusses the key issues in the construction of 110 kV transmission lines and expounds the precautions for transmission lines.