Disclosed is a method for establishing a stub network, including: sending a networking request message to an M2M platform; receiving a networking confirmation message sent from the M2M platform, wherein the networking confirmation message comprises networking authorization information; sending a domain-join request for joining a domain to an M2M terminal which has authorized networking according to the networking authorization information; receiving a domain-join confirmation returned by the M2M terminal which has authorized networking and establishing a link for the M2M terminal which has authorized networking; receiving from an M2M terminal in the domain a data forwarding request which comprises identification of a target M2M terminal; and determining the target M2M terminal as an M2M terminal in the domain according to the identification of the target M2M terminal, and directly forwarding service data to the target M2M target terminal. Also disclosed is a device and system for establishing a stub network.