Embodiments of the present application relate to the communications field and disclose a calibration method and a communications device, capable of compensating for measured amplitude and phase results. The method includes determining a position error of each of the N antenna groups, and then determining an actual position of the antenna group based on a target position of the antenna group and the position error of the antenna group. A phase compensation value and/or an amplitude compensation value of the antenna group are determined for a target probe of the second device based on the actual position of the antenna group. Based on the phase compensation value and/or the amplitude compensation value of the antenna group, compensating is performed for a phase result and/or an amplitude result that are/is obtained by the target probe of the second device by measuring a signal transmitted by the antenna group.