An outer loop power control method, comprising: determining, by a base station, according to a target value of each control channel performance indicator of user equipment, UE, in each cell, a target value of at least one performance mapping indicator of the UE in each cell, wherein the at least one performance mapping indicator comprises: a pilot signal bit error rate, a reference signal bit error rate, and a control channel reference measurement miss detection probability, and the control channel reference measurement miss detection probability is a ratio of a counted quantity of miss detection times to a total detection times in a preset time, wherein miss detection refers to that a case in which after a channel quality indicator, CQI, or an enhanced dedicated physical control channel, E-DPCCH, is decoded, a ratio of signal power to noise power is less than a set reference measurement threshold is not detected; acquiring, by the base station, a measured value of the at least one performance mapping indicator of the UE in each cell; determining, by the base station, a signal-to-noise ratio target value of the UE according to the target value of the at least one performance mapping indicator of the UE in each cell and the corresponding measured value of the performance mapping indicator; and performing, by the base station, outer loop power control on the UE according to the signal-to-noise ratio target value of the UE, so that after the outer loop power control, a measured value of the at least one performance mapping indicator reaches the corresponding target value of the performance mapping indicator. determining, by a base station, according to a target value of each control channel performance indicator of user equipment, UE, in each cell, a target value of at least one performance mapping indicator of the UE in each cell, wherein the at least one performance mapping indicator comprises: a pilot signal bit error rate, a reference signal bit error rate, and a control channel reference measurement miss detection probability, and the control channel reference measurement miss detection probability is a ratio of a counted quantity of miss detection times to a total detection times in a preset time, wherein miss detection refers to that a case in which after a channel quality indicator, CQI, or an enhanced dedicated physical control channel, E-DPCCH, is decoded, a ratio of signal power to noise power is less than a set reference measurement threshold is not detected; acquiring, by the base station, a measured value of the at least one performance mapping indicator of the UE in each cell; determining, by the base station, a signal-to-noise ratio target value of the UE according to the target value of the at least one performance mapping indicator of the UE in each cell and the corresponding measured value of the performance mapping indicator; and performing, by the base station, outer loop power control on the UE according to the signal-to-noise ratio target value of the UE, so that after the outer loop power control, a measured value of the at least one performance mapping indicator reaches the corresponding target value of the performance mapping indicator.