A user equipment handover method, characterized in comprising: sending, by user equipment, first information to a control network device or a source network device, wherein the first information is used to request a handover of the user equipment from the source network device to a destination network device; establishing, by the source network device, a forward tunnel to the destination network device; notifying, by the source network device, an uplink TEID and IP address of the source network device to the destination network device by using the forwarding tunnel; after receiving the uplink TEID and IP address of the source network device, notifying, by the destination network device, a downlink TEID and IP address of the destination network device to the source network device; receiving, by the user equipment, second information from the destination network device, the source network device, or the control network device, wherein the second information is used to notify the user equipment of a first uplink resource allocated to the user equipment by the destination network device, and wherein the second information comprises the downlink TEID and IP address of the destination network device; sending, by the user equipment, the downlink tunnel endpoint identifier, TEID, and internet protocol, IP, address of the destination network device to the control network device after the user equipment receives the second information from the destination network device, the source network device, or the control network device; instructing by the control network device, a gateway to update a user plane TEID and IP address. sending, by user equipment, first information to a control network device or a source network device, wherein the first information is used to request a handover of the user equipment from the source network device to a destination network device; establishing, by the source network device, a forward tunnel to the destination network device; notifying, by the source network device, an uplink TEID and IP address of the source network device to the destination network device by using the forwarding tunnel; after receiving the uplink TEID and IP address of the source network device, notifying, by the destination network device, a downlink TEID and IP address of the destination network device to the source network device; receiving, by the user equipment, second information from the destination network device, the source network device, or the control network device, wherein the second information is used to notify the user equipment of a first uplink resource allocated to the user equipment by the destination network device, and wherein the second information comprises the downlink TEID and IP address of the destination network device; sending, by the user equipment, the downlink tunnel endpoint identifier, TEID, and internet protocol, IP, address of the destination network device to the control network device after the user equipment receives the second information from the destination network device, the source network device, or the control network device; instructing by the control network device, a gateway to update a user plane TEID and IP address.