The invention, which belongs to the aeromagnetic measurement field, provides an aeromagnetic interference compensation method. In the prior art, no geomagnetic filed processing method is provided during aeromagnetic interference compensation coefficient calculation according to the existing aeromagnetic interference compensation method, so that the estimated aeromagnetic interference compensation coefficient is not accurate. However, with the provided method, the technical problem can be solved. The method comprises: a geomagnetic field item and an induction field item in airplane magnetic interference are combined; a linear system of equations is established; before estimation of an aeromagnetic interference compensation coefficient, band-pass filtering is carried out on a general field column vector and a direction cosine matrix of the linear system of equations; an unknown aeromagnetic interference compensation coefficient in the linear system of equations after filtering is estimated; and during practical geomagnetic measurement, the magnetic interference generated by the airplane is calculated and removed in real time by using the estimated coefficient. With the method, the geomagnetic field component in the measured signal can be processed effectively, so that the estimation precision of the aeromagnetic interference compensation coefficient is improved and thus the precision of the aeromagnetic interference compensation result is enhanced.