This application provides a communication method and a device, to reduce power consumption of a terminal. In this application, a network device sends first signaling, where the first signaling indicates a length and/or a start time unit of each DRX cycle in a plurality of DRX cycles, and at least two DRX cycles in the plurality of DRX cycles have different lengths. The network device performs information transmission based on the plurality of determined DRX cycles. Therefore, power consumption of the terminal device can be reduced.