A method for feeding back an acknowledgement/negative-acknowledgement response message on a physical uplink control channel, comprising: sending, by a user equipment, an acknowledgement/negative-acknowledgement response message by adopting a manner based on a channel selection or based on a Discrete Fourier Transform spread Orthogonal Frequency Division Multiplexing DFT-s-OFDM in a multiplexing mode according to a feedback manner in the multiplexing mode configured by a base station; wherein, the base station configures the feedback manner in the multiplexing mode for the user equipment, and indicates the user equipment, through a higher layer signaling, to send the acknowledgement/negative-acknowledgement response message by adopting the manner based on the channel selection or based on the DFT-s-OFDM in the multiplexing mode, which comprises: if the user equipment is only able to support to feed back the acknowledgement/negative-acknowledgement response message in the manner based on the channel selection, then the base station indicating the user equipment to send the acknowledgement/negative-acknowledgement response message by adopting the manner based on the channel selection in the multiplexing mode; if the user equipment is only able to support to feed back the acknowledgement/negative-acknowledgement response message in the manner based on the DFT-s-OFDM, then the base station indicating the user equipment to send the acknowledgement/negative-acknowledgement response message by adopting the manner based on the DFT-s-OFDM in the multiplexing mode; if the user equipment is able to support to feed back the acknowledgement/negative-acknowledgement response message not only in the manner based on the channel selection but also in the manner based on the DFT-s-OFDM, then the base station indicating the user equipment to send the acknowledgement/negative-acknowledgement response message by adopting the manner based on the channel selection or the manner based on the DFT-s-OFDM. sending, by a user equipment, an acknowledgement/negative-acknowledgement response message by adopting a manner based on a channel selection or based on a Discrete Fourier Transform spread Orthogonal Frequency Division Multiplexing DFT-s-OFDM in a multiplexing mode according to a feedback manner in the multiplexing mode configured by a base station; wherein, the base station configures the feedback manner in the multiplexing mode for the user equipment, and indicates the user equipment, through a higher layer signaling, to send the acknowledgement/negative-acknowledgement response message by adopting the manner based on the channel selection or based on the DFT-s-OFDM in the multiplexing mode, which comprises: if the user equipment is only able to support to feed back the acknowledgement/negative-acknowledgement response message in the manner based on the channel selection, then the base station indicating the user equipment to send the acknowledgement/negative-acknowledgement response message by adopting the manner based on the channel selection in the multiplexing mode; if the user equipment is only able to support to feed back the acknowledgement/negative-acknowledgement response message in the manner based on the DFT-s-OFDM, then the base station indicating the user equipment to send the acknowledgement/negative-acknowledgement response message by adopting the manner based on the DFT-s-OFDM in the multiplexing mode; if the user equipment is able to support to feed back the acknowledgement/negative-acknowledgement response message not only in the manner based on the channel selection but also in the manner based on the DFT-s-OFDM, then the base station indicating the user equipment to send the acknowledgement/negative-acknowledgement response message by adopting the manner based on the channel selection or the manner based on the DFT-s-OFDM. if the user equipment is only able to support to feed back the acknowledgement/negative-acknowledgement response message in the manner based on the channel selection, then the base station indicating the user equipment to send the acknowledgement/negative-acknowledgement response message by adopting the manner based on the channel selection in the multiplexing mode; if the user equipment is only able to support to feed back the acknowledgement/negative-acknowledgement response message in the manner based on the DFT-s-OFDM, then the base station indicating the user equipment to send the acknowledgement/negative-acknowledgement response message by adopting the manner based on the DFT-s-OFDM in the multiplexing mode; if the user equipment is able to support to feed back the acknowledgement/negative-acknowledgement response message not only in the manner based on the channel selection but also in the manner based on the DFT-s-OFDM, then the base station indicating the user equipment to send the acknowledgement/negative-acknowledgement response message by adopting the manner based on the channel selection or the manner based on the DFT-s-OFDM.