A method for proxy service discovery of a home network, comprising: a proxy demand device acquiring related information of proxy service discovery function of proxy devices; the proxy demand device negotiating specific parameters of proxy service discovery with the proxy devices; the proxy device performing service discovery operations of the proxy demand device on behalf of the proxy demand device, and maintaining an information exchange with the proxy demand device; wherein the method is further characterized in that the process of the proxy demand device negotiating the specific parameters of the proxy service discovery with the proxy device is as follows: the proxy demand device sending a proxy parameter negotiation request message to the proxy device, wherein the proxy parameter negotiation request message carries specific parameters of proxy service discovery expected by the proxy demand device; the proxy device sending a proxy parameter negotiation response message to the proxy demand device; wherein the specific parameters of the proxy service discovery expected by the proxy demand device comprise one or more of following: a listening time interval of the proxy demand device, conditions of services that can be provided in a service type that needs to be advertised by the proxy, interested service type identities provided by other home network devices, interested conditions or contents of services that can be provided in service types provided by other home network devices. a proxy demand device acquiring related information of proxy service discovery function of proxy devices; the proxy demand device negotiating specific parameters of proxy service discovery with the proxy devices; the proxy device performing service discovery operations of the proxy demand device on behalf of the proxy demand device, and maintaining an information exchange with the proxy demand device; wherein the method is further characterized in that the process of the proxy demand device negotiating the specific parameters of the proxy service discovery with the proxy device is as follows: the proxy demand device sending a proxy parameter negotiation request message to the proxy device, wherein the proxy parameter negotiation request message carries specific parameters of proxy service discovery expected by the proxy demand device; the proxy device sending a proxy parameter negotiation response message to the proxy demand device; wherein the specific parameters of the proxy service discovery expected by the proxy demand device comprise one or more of following: a listening time interval of the proxy demand device, conditions of services that can be provided in a service type that needs to be advertised by the proxy, interested service type identities provided by other home network devices, interested conditions or contents of services that can be provided in service types provided by other home network devices. the proxy demand device sending a proxy parameter negotiation request message to the proxy device, wherein the proxy parameter negotiation request message carries specific parameters of proxy service discovery expected by the proxy demand device; the proxy device sending a proxy parameter negotiation response message to the proxy demand device; wherein the specific parameters of the proxy service discovery expected by the proxy demand device comprise one or more of following: a listening time interval of the proxy demand device, conditions of services that can be provided in a service type that needs to be advertised by the proxy, interested service type identities provided by other home network devices, interested conditions or contents of services that can be provided in service types provided by other home network devices. a listening time interval of the proxy demand device, conditions of services that can be provided in a service type that needs to be advertised by the proxy, interested service type identities provided by other home network devices, interested conditions or contents of services that can be provided in service types provided by other home network devices.