A method for using a control channel for providing feedback information to a user equipment (UE) from a base station, a method for transmitting data and a user equipment are disclosed. The method for feeding back data includes configuring a control channel for a UE, in which the control channel is configured to bear feedback information of physical uplink shared channel (PUSCH) data, the PUSCH data is sent by the UE and transmitting the feedback information to the UE via the control channel. The method for transmitting data includes: receiving feedback information of physical uplink shared channel PUSCH data sent by a base station via a control channel; and determining whether to retransmit the PUSCH data based on the feedback information.