The invention discloses an auxiliary device of electric power telegraph pole erection which is clamped on a telegraph pole, through matching of the main card board and the supplementary card board, the telegraph pole is rocked back and forth. The auxiliary device of electric power telegraph pole erection has the characteristics that the middle of a fixing plate is provided with a telegraph pole slot, the telegraph pole slot is in a U shape, the slot wall is provided with a wearing pad; two supporting frames are hinged to the two ends of the fixing plate separately and are fixed by tightening fixing bolts separately; a supporting plate is arranged on the bottom of the supporting frames and the supporting plate is of a curved plate structure; the supporting plate is made of stainless steel and is provided with multiple anti-sliding teeth; and the anti-sliding teeth are made of rigid materials. One end of a vertical rod and one end of a supporting rod are separately arranged on the fixingplate vertically, and are located on both sides of the telegraph pole slot separately. The two sides of the vertical rod are provided with ribbed plates separately and the ribbed plates are connectedwith the fixing plate separately. The two sides of the supporting rod are provided with ribbed plates separately and the ribbed plates are connected with the fixing plate separately.