Provided is a dynamic scheduling method and apparatus. The method includes: in a process in which a user equipment (UE) receives data of a channel A, the UE triggers to start or restart an inactivity timer a preset length at a preset moment; during running of the inactivity timer, the UE receives a Physical Downlink Control Channel (PDCCH) signaling sent by a base station, and detects a PDCCH signaling for scheduling a downlink control information (DCI) of the channel A.