A method including: establishing, by a first gateway, a network connection to a second gateway, where the first gateway is configured to manage a human body device of a first user, and the second gateway is configured to manage a human body device of a second user; obtaining, by the first gateway, collaboration information of the second gateway by using the network connection, where the collaboration information includes cellular network performance information; and if the cellular network performance information meets a preset performance condition, using, by the first gateway, the second gateway as an anchor for accessing the Internet, so as to connect the human body device of the first user to the Internet.