The invention provides a grinding device of pipes used for the curved surface anti-buckling tests of adhesive tapes. The grinding device comprises a base, a motor, a rotating shaft, a dead head, a tip, a screw and a slider. A first upright plate and a second upright plate are arranged on the upper end surface of the base at interval, a driving gear is arranged on an output shaft of the motor, therotating shaft can be arranged on the lower end part of the first upright plate in a rotating manner, the outer end of the rotating shaft is provided with a driving wheel and an input gear which simultaneously rotates with the driving wheel, the input gear is in meshing transmission with the driving gear, the inner end of the rotating shaft is provided with a first clamp component, the dead head is arranged on one side of the second upright plate, and the screw is in transmission connection with the driving gear through a speed reduction mechanism; the slider is sheathed on the screw, and thebottom end of the slider is provided with a clamp. Compared with the prior art, the grinding device has the advantages that as manual grinding is replaced by mechanical grinding, the grinding efficiency is greatly improved; as personal factors are eliminated, the uniformity of ground pipes used for tests is good, and the data accuracy and reliability of the anti-buckling tests of adhesive tapes can be ensured.