A resource allocation method includes: receiving resource allocation indication information sent by a base station, or acquiring pre-configured resource allocation indication information, wherein the resource allocation indication information is used for characterizing time domain resources occupied by a forward time-frequency resource and/or time domain resources occupied by a reverse time-frequency resource for direct communication in a target time unit, and the forward time-frequency resource is used for transmitting user data and control information, and the reverse time-frequency resource is used for transmitting feedback information from a user data receiving device to a user data sending device; and determining, according to the resource allocation indication information, a time domain resource occupied by the forward time-frequency resource and/or a time domain resource occupied by the reverse time-frequency resource.