The invention discloses a power line normalization auxiliary device. The power line normalization auxiliary device mainly comprises a small round clamping ring, a large round bottom ring and an operation device, and further comprises a plug-in mounting and locking mechanism, a leveling mechanism, a tail section locking device, a hinging and locking device, a feeding mechanism, a lifting driving device, a swing driving device and the like. The device can be quickly assembled on site, and is fast to calibrate, fast in alignment and simple in adjustment; an electric pole can be automatically painted, coded and marked, and the perpendicularity or the inclination degree of the electric pole can be rapidly measured; and the three-phase electric wire of the electric pole can be quickly connected,the detection data can be collected, disassembly is simple and convenient, the occupied space is small after disassembling, carrying is convenient, time and labor are saved, and the whole operation can be completed by one person.