A method includes detecting that an icon, on a desktop of a terminal device, of an application is associated with a share button; a storage location, of an installation file of the application, in the terminal device is determined; the installation file, to which the storage location points, of the application is sent, according to the storage location, of the installation file of the application, in the terminal device, to a terminal device with which the installation file needs to be shared; and therefore, a storage location, of an installation file of an application, in the terminal device can be automatically located by operating an icon of the application, and a user does not need to manually operate a file management tool to search for an installation file of a to-be-shared application.