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 standard 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; determining an actual feature image of the antenna to be adjusted according to the standard feature image, wherein there is a correspondence between a position of a main lobe in the standard 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 standard feature image and the correspondence between the position of the main lobe in the standard 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.