A HARQ-ACK information feedback method is disclosed. In an embodiment, a feedback method includes performing data channel detection on a first downlink subframe, performing data channel detection on a second downlink subframe, wherein the second downlink subframe does not overlap with the first downlink subframe in time domain, sending first HARQ-ACK information to a network device by using a first uplink channel when determining that the first downlink subframe includes a first downlink data channel and that the second downlink subframe does not include a second downlink data channel, wherein the first HARQ-ACK information indicates a receiving status of the first downlink data channel and that a first length of a time domain resource corresponding to the first downlink data channel is different from a second length of a time domain resource corresponding to the second downlink data channel.