A method for sending uplink information, wherein the method is performed by user equipment, UE, and wherein the method comprises: sending (S201, S301, S401, S501, S601) a random access request to a base station; receiving (S205, S305, S405, S505, S605) a random access response, RAR, from the base station, wherein the RAR carries first resource information of a first uplink resource from the base station; and sending (S206, S306, S406, S506, S606) uplink information to the base station based on the first uplink resource, wherein the uplink information comprises partial information of indication information and resource request information; the indication information comprises at least one of location update information, service establishment information, attach request information, and detach request information of user equipment, UE; and the resource request information is used to request the base station to allocate a second uplink resource to the UE, and the second uplink resource is used by the UE to send remaining information other than the partial information in the indication information; characterized in that the sending a random access request to a base station comprises: selecting a target channel based on the uplink information, and sending, to the base station through the target channel, a random access request that carries a randomly selected preamble; or selecting a target preamble and a target channel based on the uplink information, and sending, to the base station through the target channel, a random access request that carries the target preamble; wherein the target preamble and the target channel are used to instruct the base station to allocate an uplink resource to the UE, and a resource size of the allocated uplink resource is greater than a default size. sending (S201, S301, S401, S501, S601) a random access request to a base station; receiving (S205, S305, S405, S505, S605) a random access response, RAR, from the base station, wherein the RAR carries first resource information of a first uplink resource from the base station; and sending (S206, S306, S406, S506, S606) uplink information to the base station based on the first uplink resource, wherein the uplink information comprises partial information of indication information and resource request information; the indication information comprises at least one of location update information, service establishment information, attach request information, and detach request information of user equipment, UE; and the resource request information is used to request the base station to allocate a second uplink resource to the UE, and the second uplink resource is used by the UE to send remaining information other than the partial information in the indication information; characterized in that the sending a random access request to a base station comprises: selecting a target channel based on the uplink information, and sending, to the base station through the target channel, a random access request that carries a randomly selected preamble; or selecting a target preamble and a target channel based on the uplink information, and sending, to the base station through the target channel, a random access request that carries the target preamble; wherein the target preamble and the target channel are used to instruct the base station to allocate an uplink resource to the UE, and a resource size of the allocated uplink resource is greater than a default size. selecting a target channel based on the uplink information, and sending, to the base station through the target channel, a random access request that carries a randomly selected preamble; or selecting a target preamble and a target channel based on the uplink information, and sending, to the base station through the target channel, a random access request that carries the target preamble; wherein the target preamble and the target channel are used to instruct the base station to allocate an uplink resource to the UE, and a resource size of the allocated uplink resource is greater than a default size.