The invention relates to the technical field of electric power maintenance equipment, in particular to an electric power overhaul auxiliary device which comprises a movable overhaul ladder, puller straps, a pedal platform, extension component fastening devices, a simple overhead hoist and a tool box platform. Through the cooperation of the fixed end of the circular arc-shaped overhaul ladder and the at least two groups of puller straps, the overhaul ladder maximally fits to the radian of an electric pole, the stability of the overhaul ladder is greatly improved when an aluminum alloy or bamboo/wooden overhaul ladder is used, and the overhaul ladder can be used a simple lifting frame for lifting large-sized parts. The extension component fastening device is perpendicularly arranged along the center of the side surface of the fixed end of the overhaul ladder, and the extension component fastening device is arranged at the movable end as well; and by utilizing the extension component fastening devices, working personnel is assisted to quickly install different types of temporary components required for overhaul onto the overhaul ladder so as to meet different operation requirements.