Embodiments of the present disclosure provide a resource management method and a related device. The resource management method includes: receiving, by UE, signaling for releasing resource sent by a base station, where the signaling for releasing resource indicates information of resource location; and determining, based on the information of resource location, a time-frequency resource corresponding to the information of resource location in allocated resources already allocated by a network side to the UE, and then releasing the time-frequency resource. The UE may release some of the allocated resources based on an indication of the base station.