Abstract: A retrieval method includes obtaining first data corresponding to a retrieval object, wherein the first data indicates M feature vectors of the retrieval object, wherein each feature vector of the retrieval object corresponds to one modality of the retrieval object, and wherein M is an integer greater than 1, and obtaining a correlation between a plurality of groups of object information and the retrieval information to output at least one group of retrieved object information, wherein each group of object information corresponds to M feature vectors in an index, wherein the M feature vectors of each group of object information are indicated by one group of second data, and wherein each feature vector of the object information corresponds to one modality of the object information.