An HARQ feedback method and device for multicast communication, a storage medium, and a terminal. The method comprises: in response to a failure to decode a sidelink control information, listening to HARQ feedback informations of other UEs in a group; determining, according to the HARQ feedback informations of the other UEs in the group, whether or not a HARQ-NACK feedback information or a data request information needs to be sent; and if so, sending the HARQ-NACK feedback information or the data request information over a preset resource. The solution provided by the present invention can effectively improve communication reliability.