A location method for minor damages of aircraft skins based on a marked honeycomb model is proposed. A CCD camera is used to capture the damage location, and the image is processed at sub-pixel level to obtain its coordinates. According to the principles of harmonic conjugation and the invariance of cross-ratios, the actual position of the damage can be determined to achieve accurate positioning. Then, based on this, the base point is transmitted and the infinite and seamless extensibility of the honeycomb model are used to compare and match of main base points and other base points on the surface of the aircraft skin so as to achieve accurate detection of the aircraft skin damage. The comparative experimental results show that the proposed method has high accuracy and less time consuming, and can effectively realize damage detection and location for aircraft skins.