Method and apparatus for configuring transmit power

A method and an apparatus for configuring transmit power are disclosed in the present invention, wherein the method for configuring transmit power includes: computing power parameters for each Physical Uplink Shared Channel (PUSCH) (S302); determining whether there is a PUSCH whose power parameters exceed threshold values (S304); if yes, setting transmit power of at least a part of the above-mentioned PUSCHs to zero (S306); determining whether the sum of the pre-estimated transmit power of above-mentioned PUSCHs whose transmit power are not set to zero and the pre-estimated transmit power of the Physical Uplink Control Channel (PUCCH) exceeds the maximum configured output power of the User Equipment (S308); if not, setting the transmit power of the PUSCHs whose transmit power are not set to zero as the pre-estimated transmit power of the PUSCHs (S310). The present invention solves the problem in the prior art that configuration of transmit power can not be done on each physical uplink channel on component carriers, and effectively reduces transmit power of each physical uplink channel.