A method for controlling uplink power, comprising: receiving, by a terminal device, uplink power control information transmitted by a network device; determining, by the terminal device, according to the uplink power control information, a target power control parameter corresponding to a target uplink multiple access mode; and determining, by the terminal device, according to the target power control parameter, a target transmitting power when transmitting a target uplink signal using the target uplink multiple access mode; characterized in that: wherein the uplink power control information comprises open loop power control information, the open loop power control information comprises open loop power control parameters corresponding to a plurality of uplink multiple access modes, and the plurality of uplink multiple access modes comprises the target uplink multiple access mode; wherein the determining, by the terminal device, according to the uplink power control information, a target power control parameter corresponding to a target uplink multiple access mode of a plurality of uplink multiple access modes comprises: determining, by the terminal device, according to the open loop power control information, a target open loop power control parameter corresponding to the target uplink multiple access mode in the open loop power control parameters, wherein the target open loop power control parameter comprises the following parameters: an uplink target receiving power, a path loss factor, and a sounding reference signal, SRS, power adjustment value. receiving, by a terminal device, uplink power control information transmitted by a network device; determining, by the terminal device, according to the uplink power control information, a target power control parameter corresponding to a target uplink multiple access mode; and determining, by the terminal device, according to the target power control parameter, a target transmitting power when transmitting a target uplink signal using the target uplink multiple access mode; characterized in that: wherein the uplink power control information comprises open loop power control information, the open loop power control information comprises open loop power control parameters corresponding to a plurality of uplink multiple access modes, and the plurality of uplink multiple access modes comprises the target uplink multiple access mode; wherein the determining, by the terminal device, according to the uplink power control information, a target power control parameter corresponding to a target uplink multiple access mode of a plurality of uplink multiple access modes comprises: determining, by the terminal device, according to the open loop power control information, a target open loop power control parameter corresponding to the target uplink multiple access mode in the open loop power control parameters, wherein the target open loop power control parameter comprises the following parameters: an uplink target receiving power, a path loss factor, and a sounding reference signal, SRS, power adjustment value. wherein the uplink power control information comprises open loop power control information, the open loop power control information comprises open loop power control parameters corresponding to a plurality of uplink multiple access modes, and the plurality of uplink multiple access modes comprises the target uplink multiple access mode; wherein the determining, by the terminal device, according to the uplink power control information, a target power control parameter corresponding to a target uplink multiple access mode of a plurality of uplink multiple access modes comprises: determining, by the terminal device, according to the open loop power control information, a target open loop power control parameter corresponding to the target uplink multiple access mode in the open loop power control parameters, wherein the target open loop power control parameter comprises the following parameters: an uplink target receiving power, a path loss factor, and a sounding reference signal, SRS, power adjustment value.