Abstract: Disclosed are a method for a reader to provide a service, a reader and a computer storage medium. The method includes: obtaining and displaying, by a reader, at least one piece of plugin information, the plugin information including at least a plugin name; determining plugin information selected by a user from the at least one piece of plugin information, and downloading a corresponding plugin file according to the selected plugin information; and installing a plugin according to the downloaded plugin file, and invoking the plugin installed to provide a corresponding service. By enabling the reader to download a corresponding plug-in file according to plug-in information selected by a user, i.e., downloading the corresponding plug-in file according to the user's needs, the size of a reader installation package in the present disclosure can be controlled effectively, thereby saving traffic.