A method for processing an uplink control signaling feedback, comprising: a base station configuring a feedback mode of an uplink control signaling for user equipment, wherein the feedback mode is used for instructing the user equipment a manner in which to transmit the uplink control signaling on a physical uplink control channel, PUCCH, and/or a physical uplink shared channel, PUSCH; and the user equipment sending the uplink control signaling according to the feedback mode, wherein the feedback mode comprises one of the following: - allowing a simultaneous transmission of the PUCCH and the PUSCH, and transmission of the uplink control signaling on the PUCCH and the PUSCH, wherein the uplink control signaling includes at least one of: an acknowledgement/negative acknowledgement, ACK/NACK message, a scheduling request, and periodic channel state information, or - not allowing a simultaneous transmission of the PUCCH and the PUSCH, and the uplink control signaling is sent on the PUSCH and the PUCCH is not sent simultaneously, characterized in that when the control field of triggering an aperiodic channel state information in downlink control information corresponding to the PUSCH is enabled, if the uplink control signaling does not include the periodic channel state information, the aperiodic channel state information is sent on the corresponding PUSCH; if the uplink control signaling includes the periodic channel state information and the aperiodic channel state information does not include the channel state information of a downlink component carrier indicated by the periodic channel state information, then the periodic channel state information and the aperiodic channel state information are combined into a new channel state information report, and the new channel state information is sent on the PUSCH that corresponds to the downlink control information that triggers the transmission of the aperiodic channel state information; and if the uplink control signaling includes the periodic channel state information and the aperiodic channel state information includes the channel state information of the downlink component carrier indicated by the periodic channel state information, then the aperiodic channel state information is sent on the PUSCH corresponding to the downlink control information that triggers transmission of the aperiodic channel state information while the periodic channel state information is not sent out. a base station configuring a feedback mode of an uplink control signaling for user equipment, wherein the feedback mode is used for instructing the user equipment a manner in which to transmit the uplink control signaling on a physical uplink control channel, PUCCH, and/or a physical uplink shared channel, PUSCH; and the user equipment sending the uplink control signaling according to the feedback mode, wherein the feedback mode comprises one of the following: - allowing a simultaneous transmission of the PUCCH and the PUSCH, and transmission of the uplink control signaling on the PUCCH and the PUSCH, wherein the uplink control signaling includes at least one of: an acknowledgement/negative acknowledgement, ACK/NACK message, a scheduling request, and periodic channel state information, or - not allowing a simultaneous transmission of the PUCCH and the PUSCH, and the uplink control signaling is sent on the PUSCH and the PUCCH is not sent simultaneously, characterized in that when the control field of triggering an aperiodic channel state information in downlink control information corresponding to the PUSCH is enabled, if the uplink control signaling does not include the periodic channel state information, the aperiodic channel state information is sent on the corresponding PUSCH; if the uplink control signaling includes the periodic channel state information and the aperiodic channel state information does not include the channel state information of a downlink component carrier indicated by the periodic channel state information, then the periodic channel state information and the aperiodic channel state information are combined into a new channel state information report, and the new channel state information is sent on the PUSCH that corresponds to the downlink control information that triggers the transmission of the aperiodic channel state information; and if the uplink control signaling includes the periodic channel state information and the aperiodic channel state information includes the channel state information of the downlink component carrier indicated by the periodic channel state information, then the aperiodic channel state information is sent on the PUSCH corresponding to the downlink control information that triggers transmission of the aperiodic channel state information while the periodic channel state information is not sent out. - allowing a simultaneous transmission of the PUCCH and the PUSCH, and transmission of the uplink control signaling on the PUCCH and the PUSCH, wherein the uplink control signaling includes at least one of: an acknowledgement/negative acknowledgement, ACK/NACK message, a scheduling request, and periodic channel state information, or - not allowing a simultaneous transmission of the PUCCH and the PUSCH, and the uplink control signaling is sent on the PUSCH and the PUCCH is not sent simultaneously,