A calibration tool 60 for a scanning endoscope includes: an abutment portion 67 that is in contact with and abuts a part of a distal end face of a distal end portion of an insertion portion of the scanning endoscope 2, the part projecting furthest toward a distal end side and a chart 63 with a calibration pattern drawn thereon, the chart being arranged parallel to the distal end face 12a with a predetermined distance from the distal end face positioned as a result of the part coming into contact with the abutment portion 67, according to a size of the calibration pattern, whereby image calibration of the scanning endoscope can accurately be performed with a simple configuration.