Calibration method and apparatus

According to the embodiments of the invention, a calibration method and apparatus are provided wherein the method comprises: obtaining by user equipment the accelerometer data and speedometer data of an unmanned aerial vehicle transmitted by a ground station in connection with the unmanned aerial vehicle wherein the accelerometer data and speedometer data are transmitted to the ground station from the unmanned aerial vehicle; when the speedometer data is zero, determining whether the accelerometer data is standard gravitational acceleration or not; when the speedometer data is zero and the accelerometer data is not standard gravitational acceleration, generating a first calibration instruction to control the unmanned aerial vehicle so that the speedometer is calibrated as the standard gravitational acceleration; and when the first calibration instruction is transmitted to the ground station, sending the first calibration instruction by the ground station to the unmanned aerial vehicle. The method and apparatus of the invention are used to achieve the technical effect of automatically calibrating the speedometer.