A method for controlling sending of a general data transfer platform, GTP, message, performed by a GTP message sending device, comprising: receiving, by the GTP message sending device, a no-response time indication of a user equipment sent from a GTP message response device, wherein the no-response time indication indicates a no-response time of the user equipment, and wherein the no-response time is a time period when the user equipment is in an idle state or a time at which an electricity saving state of the user equipment is ended; and adjusting, by the GTP message sending device according to the no-response time of the user equipment indicated by the received no-response time indication of the user equipment, a time of sending a GTP message; wherein the adjusting, by the GTP message sending device according to the no-response time of the user equipment indicated by the received no-response time indication of the user equipment, the time of sending the GTP message comprises: adjusting, by the GTP message sending device, duration of a retransmission timer to be greater than duration of the no-response time of the user equipment, wherein the duration of the retransmission timer is duration of retransmission of the GTP message performed by the GTP message sending device; or adjusting, by the GTP message sending device, a product of duration of a retransmission timer and a quantity-of-times threshold of a retransmission counter to be greater than duration of the no-response time of the user equipment, wherein the retransmission counter records a quantity of times of retransmissions; wherein the receiving, by the GTP message sending device, the no-response time indication of the user equipment sent from the GTP message response device comprises: receiving, by the GTP message sending device, a downlink data notification acknowledgment message sent from the GTP message response device, wherein the downlink data notification acknowledgment message carries the no-response time indication of the user equipment. receiving, by the GTP message sending device, a no-response time indication of a user equipment sent from a GTP message response device, wherein the no-response time indication indicates a no-response time of the user equipment, and wherein the no-response time is a time period when the user equipment is in an idle state or a time at which an electricity saving state of the user equipment is ended; and adjusting, by the GTP message sending device according to the no-response time of the user equipment indicated by the received no-response time indication of the user equipment, a time of sending a GTP message; wherein the adjusting, by the GTP message sending device according to the no-response time of the user equipment indicated by the received no-response time indication of the user equipment, the time of sending the GTP message comprises: adjusting, by the GTP message sending device, duration of a retransmission timer to be greater than duration of the no-response time of the user equipment, wherein the duration of the retransmission timer is duration of retransmission of the GTP message performed by the GTP message sending device; or adjusting, by the GTP message sending device, a product of duration of a retransmission timer and a quantity-of-times threshold of a retransmission counter to be greater than duration of the no-response time of the user equipment, wherein the retransmission counter records a quantity of times of retransmissions; wherein the receiving, by the GTP message sending device, the no-response time indication of the user equipment sent from the GTP message response device comprises: receiving, by the GTP message sending device, a downlink data notification acknowledgment message sent from the GTP message response device, wherein the downlink data notification acknowledgment message carries the no-response time indication of the user equipment. adjusting, by the GTP message sending device, duration of a retransmission timer to be greater than duration of the no-response time of the user equipment, wherein the duration of the retransmission timer is duration of retransmission of the GTP message performed by the GTP message sending device; or adjusting, by the GTP message sending device, a product of duration of a retransmission timer and a quantity-of-times threshold of a retransmission counter to be greater than duration of the no-response time of the user equipment, wherein the retransmission counter records a quantity of times of retransmissions; wherein the receiving, by the GTP message sending device, the no-response time indication of the user equipment sent from the GTP message response device comprises: receiving, by the GTP message sending device, a downlink data notification acknowledgment message sent from the GTP message response device, wherein the downlink data notification acknowledgment message carries the no-response time indication of the user equipment.