A method for displaying a network name, comprising: registering, by a user equipment, UE, by using a combined attach procedure or a combined tracking area update procedure, with a long term evolution network and a first circuit switched domain network, and acquiring a public land mobile network identity, PLMN ID, of the long term evolution network and a PLMN ID of the first circuit switched domain network; characterized in that the method further comprises: before a to-be-displayed second network name sent by a first network device on the long term evolution network is received, displaying, by the UE, a first network name corresponding to a predetermined PLMN ID, wherein the predetermined PLMN ID is one of the PLMN ID of the long term evolution network and the PLMN ID of the first circuit switched domain network, wherein after the displaying, by the UE, a first network name corresponding to a predetermined PLMN ID, the method further comprises: during a process of executing a service on the long term evolution network, changing, by the UE, from the long term evolution network to the first circuit switched domain network or a second circuit switched domain network; and receiving, by the UE, a to-be-displayed third network name sent by a second network device, and keeping, by the UE, a currently displayed network name unchanged, or ignoring the third network name; wherein the first circuit switched domain network and the second circuit switched domain network belong to a 2G network, and the second network device is a network device on the 2G network; or the first circuit switched domain network and the second circuit switched domain network belong to a 3G network, and the second network device is a network device on the 3G network. registering, by a user equipment, UE, by using a combined attach procedure or a combined tracking area update procedure, with a long term evolution network and a first circuit switched domain network, and acquiring a public land mobile network identity, PLMN ID, of the long term evolution network and a PLMN ID of the first circuit switched domain network; characterized in that the method further comprises: before a to-be-displayed second network name sent by a first network device on the long term evolution network is received, displaying, by the UE, a first network name corresponding to a predetermined PLMN ID, wherein the predetermined PLMN ID is one of the PLMN ID of the long term evolution network and the PLMN ID of the first circuit switched domain network, wherein after the displaying, by the UE, a first network name corresponding to a predetermined PLMN ID, the method further comprises: during a process of executing a service on the long term evolution network, changing, by the UE, from the long term evolution network to the first circuit switched domain network or a second circuit switched domain network; and receiving, by the UE, a to-be-displayed third network name sent by a second network device, and keeping, by the UE, a currently displayed network name unchanged, or ignoring the third network name; wherein the first circuit switched domain network and the second circuit switched domain network belong to a 2G network, and the second network device is a network device on the 2G network; or the first circuit switched domain network and the second circuit switched domain network belong to a 3G network, and the second network device is a network device on the 3G network. during a process of executing a service on the long term evolution network, changing, by the UE, from the long term evolution network to the first circuit switched domain network or a second circuit switched domain network; and receiving, by the UE, a to-be-displayed third network name sent by a second network device, and keeping, by the UE, a currently displayed network name unchanged, or ignoring the third network name; wherein the first circuit switched domain network and the second circuit switched domain network belong to a 2G network, and the second network device is a network device on the 2G network; or the first circuit switched domain network and the second circuit switched domain network belong to a 3G network, and the second network device is a network device on the 3G network.