A method for sharing media content, a terminal device, and a content sharing system are provided. A method for sharing media content may include: obtaining, by a first terminal device, M network addresses from the N second terminal devices; obtaining, based on the M network addresses, M pieces of media content from a content server, editing the M pieces of media content obtained from the content server to obtain first media content, and generating editing information according to an editing manner used when the first media content is obtained; sending the editing information to the content server; receiving a second network address sent by the content server; and publishing the second network address on a social networking server. The solutions of the embodiments of the present invention enhance flexibility of content sharing and user interactivity in a social networking service scenario.