Calibration method for indicating value errors of handheld laser range finder

The invention discloses a calibration method for indicating value errors of a handheld laser range finder. A calibration device system adopted by the calibration method comprises a measurement standard device, a polarizing beam splitter, a combined lens group, a half-wave plate, a folding light path lens group, a quarter-wave plate, a reflector and a reflecting plate, after the calibration devicesystem is installed and debugged, the calibration of each measurement point is completed by adjusting the folding optical path lens group. When the method is used for calibration, the optical path ofthe laser from the handheld laser range finder to the reflecting plate is greater than the optical path of the laser from the reflecting plate to the range finder; in the prior art, the optical path of the laser from the handheld laser range finder to the reflecting plate is equal to the optical path of the laser from the reflecting plate to the range finder. Although the loss of reflection or transmission of the laser is