Disclosed are a method for transmitting Hybrid Automatic Repeat Request (HARQ) feedback information, a user equipment, and a base station. The method includes: determining a reception window of data on which HARQ binding is to be performed; detecting data in the reception window; and bundling and transmitting HARQ feedback information for the data detected in the reception window. By means of the method, the user equipment and the base station, HARD bundling can be very conveniently implemented in a Half-Duplex (HD) frequency division multiplexing system.