Calibration equipment and calibration method for defects of coiled tubing

The invention discloses calibration equipment and a calibration method for defects of a coiled tubing. The calibration equipment comprises a first pipe body and a second pipe body which are coaxial and equal in diameter, and a gap is formed between the first pipe body and the second pipe body; the equipment the material tank is located at the gap, the spraying device is fixedly connected with the material tank, and the spraying direction of the spraying device faces the axis direction of the first pipe body or the second pipe body; and the equipment further comprises a rotating mechanism used for driving the spraying device to rotate in the circumferential direction of the first pipe body or the second pipe body. According to the calibration equipment and the calibration method for the defects of the coiled tubing, the calibration problem after online detection of the coiled tubing in the prior art is solved, and the purposes that automatic calibration under continuous online operation is met, interference on