Abstract: In the maintenance operation of transmission lines, there is a significant risk of personnel falling when climbing steel tubular tower and angle steel super tall towers, which seriously threatens the safety of the operators. Especially after the "4.9" accident, the newly revised safety regulations require that operators must not lose safety protection while climbing towers or poles. In response, Beijing Electric Power Company actively explores new technologies and devices, such as installs fall prevention devices to enhance the safety of operators climbing the tower. This article briefly introduces the existing high-altitude anti fall measures for transmission lines in Beijing, analyzes the applicability of fixed anti fall devices, and proposes the improvement suggestions.