1. A method for superposing location information on a collage, comprising: acquiring a selected image and a collage template identifier corresponding to a selected collage template, and acquiring longitude and latitude information corresponding to the selected image, each collage template corresponding to one collage template identifier; sending the longitude and latitude information and the collage template identifier to a server, so that the server returns corresponding graphic and textual information according to the longitude and latitude information and the collage template identifier, each collage template identifier corresponding to at least one group of graphic and textual information, and the graphic and textual information comprising textual information and graphic information that are related to a location; and receiving the graphic and textual information returned by the server, and superposing the selected image and the graphic and textual information on the selected collage template.