1. An antenna alignment method, comprising: acquiring, according to an antenna type of an antenna to be adjusted and a pre-selected image element type, a first feature image corresponding to the antenna type and the image element type from a feature image library, wherein the image element type is a feature attribute of data points in a Received Signal Level (RSL) curved surface or a radiation pattern of the antenna; acquiring the RSL curved surface of the antenna to be adjusted; determining an actual feature image of the antenna to be adjusted according to the first feature image, the RSL curved surface, and the image element type, wherein there is a correspondence between a position of a main lobe in the first feature image and an alignment direction of a main lobe in the actual feature image; and determining the alignment direction of the main lobe in the actual feature image according to the position of the main lobe in the first feature image and the correspondence between the position of the main lobe in the first feature image and the alignment direction of the main lobe in the actual feature image, and adjusting the antenna to the alignment direction of the main lobe in the actual feature image; wherein determining the actual feature image of the antenna to be adjusted according to the first feature image, the RSL curved surface, and the image element type comprises: determining a first starting image element point and a state transition matrix of the actual feature image according to the first feature image, wherein the state transition matrix predicts a trajectory of image element points of the actual feature image; and determining the actual feature image of the antenna to be adjusted according to image element points of the image element type in the RSL curved surface, the first starting image element point, and the state transition matrix.