The present invention provides a method, a group server, and a member device for accessing member resources. By using an established mapping relationship between a multicast address and a fanout URI in a group resource, a member resource access request may be sent by multicast to member devices having member resources in the group resource, and the fanout URI is included in the member resource access request, so that the member devices having the member resources execute, according to access paths of the member resources on the member devices as indicated by the fanout URI, an operation indicated by the member resource access request. Therefore, the group server does not need to unicast the access request to each member device, and network overheads are saved.