An authorization and verification method, comprising: receiving, by a relay device, a communication request sent by a remote device; generating, by the relay device, a first radio resource control message based on the communication request, and sending the first radio resource control message to a base station; receiving, by the base station, the first radio resource control message sent by the relay device, wherein the first radio resource control message comprises a non-access stratum message of the remote device; identifying, by the base station, based on the first radio resource control message, that the remote device requests to access a network by using the relay device, obtaining an identifier of the relay device, and sending the identifier of the relay device and the non-access stratum message of the remote device to a mobility management entity of the remote device by using an initial device message; receiving, by the mobility management entity of the remote device, the initial device message sent by the base station, wherein the initial device message comprises the non-access stratum message of the remote device and the identifier of the relay device; triggering, by the mobility management entity of the remote device based on the initial device message, verification on an association relationship between the remote device and the relay device, whether the remote device is allowed to access the network by using the relay device; and after determining that the association relationship is verified, sending, by the mobility management entity of the remote device, an initial context setup request message to the base station, receiving, by the base station, the initial context setup request message sent by the mobility management entity of the remote device; and setting up, by the base station, context information for the remote device based on the initial context setup request message, and sending a second radio resource control message to the relay device; and receiving, by the relay device, the second radio resource control message sent by the base station, so as to determine, based on the second radio resource control message, to allow the remote device to access the network by using the relay device. receiving, by a relay device, a communication request sent by a remote device; generating, by the relay device, a first radio resource control message based on the communication request, and sending the first radio resource control message to a base station; receiving, by the base station, the first radio resource control message sent by the relay device, wherein the first radio resource control message comprises a non-access stratum message of the remote device; identifying, by the base station, based on the first radio resource control message, that the remote device requests to access a network by using the relay device, obtaining an identifier of the relay device, and sending the identifier of the relay device and the non-access stratum message of the remote device to a mobility management entity of the remote device by using an initial device message; receiving, by the mobility management entity of the remote device, the initial device message sent by the base station, wherein the initial device message comprises the non-access stratum message of the remote device and the identifier of the relay device; triggering, by the mobility management entity of the remote device based on the initial device message, verification on an association relationship between the remote device and the relay device, whether the remote device is allowed to access the network by using the relay device; and after determining that the association relationship is verified, sending, by the mobility management entity of the remote device, an initial context setup request message to the base station, receiving, by the base station, the initial context setup request message sent by the mobility management entity of the remote device; and setting up, by the base station, context information for the remote device based on the initial context setup request message, and sending a second radio resource control message to the relay device; and receiving, by the relay device, the second radio resource control message sent by the base station, so as to determine, based on the second radio resource control message, to allow the remote device to access the network by using the relay device.