The present invention provides a service traffic processing method and apparatus. The service traffic processing method in the present invention includes: sending, by a home gateway HG, a registration request message to a server, where the registration request message includes an identifier of the HG; receiving, by the HG, the policy control packet that is corresponding to the identifier of the HG and returned by the server; and determining, by the HG according to the policy control packet and a packet carrying to-be-sent service traffic, a tunnel that is to be used for transmission, and sending, by using the determined tunnel that is to be used for transmission, the packet carrying to-be-sent service traffic. In embodiments of the present invention, because the HG may compare the packet carrying to-be-sent service traffic with the policy control packet, to determine a transmission tunnel that is corresponding to the packet carrying to-be-sent service traffic, fine control of service traffic transmission is i
