The invention discloses an intelligent rod ascending device capable of being adapt to telegraph poles with different diameters. The intelligent rod ascending device capable of being adapt to the telegraph poles with different diameters comprises an insulated copper, an upper hoop, a lower hoop, an insulated copper bracket, a lifting hydraulic cylinder, an anti-dumping device and the like. The insulated copper is fastened to the insulated copper bracket through bolts, three guide rods are fixedly mounted on a guide mounting plate, the lower hoop is fixedly mounted at the upper end of a cylinderbody of the lifting hydraulic cylinder, the three guide rods penetrate through the lower hoop, the upper ends of the three guide rods are fixedly connected with the upper hoop, the upper hoop is fixedly connected with a push rod of the lifting hydraulic cylinder, and the anti-dumping device is mounted at the lower end of the cylinder body of the lifting hydraulic cylinder. Fixed gears are furthermounted at the upper ends of the guide rods close to the insulated copper, a rotary drive motor is mounted on a top plate of the insulated copper bracket, a movable gear is connected to a rotary shaft of the rotary drive motor, and a three-clamping arm rod ascending hoop is adopted in the upper hoop and the lower hoop. The intelligent rod ascending device capable of being adapt to the telegraph poles with different diameters can adapt to the telegraph poles with different diameters, has good tight holding degree and high safety, can be rotated, and convenient operation is achieved.