A discontinuous reception processing method, the method comprising: receiving, by a terminal device, data on a first downlink, DL, bandwidth part, BWP; wherein the first DL BWP is a BWP configured with a monitoring occasion of a wake-up signal, WUS; and wherein the method further comprises: when the terminal device switches from the first DL BWP to a second DL BWP to receive data within a monitoring time range of the WUS configured on the first DL BWP and before a discontinuous reception, DRX, ON duration timer starts, starting, by the terminal device, the DRX ON duration timer at a starting moment of the DRX ON duration timer to enter a DRX activation period; wherein the second DL BWP is a BWP that is not configured with a monitoring occasion of WUS, characterized in that the method further comprises receiving (31, 41), by the terminal device, radio resource control, RRC, configuration information sent by a network device; wherein the RRC configuration information carries: a DRX configuration parameter, a BWP configuration parameter, and a WUS configuration parameter; wherein the DRX configuration parameter comprises: a long DRX cycle and the DRX ON duration timer; the BWP configuration parameter comprises at least one of: at least one DL BWP and a BWP deactivation timer; the WUS configuration parameter comprises: a first type of DL BWP configured with the monitoring occasion of the wake-up signal, WUS, and a second type of DL BWP not configured with the monitoring occasion of the WUS; wherein the first type of DL BWP comprises the first DL BWP; the second type of DL BWP comprises the second DL BWP; and the first type of DL BWP and the second type of BWP are DL BWPs in the at least one DL BWP. receiving, by a terminal device, data on a first downlink, DL, bandwidth part, BWP; wherein the first DL BWP is a BWP configured with a monitoring occasion of a wake-up signal, WUS; and wherein the method further comprises: when the terminal device switches from the first DL BWP to a second DL BWP to receive data within a monitoring time range of the WUS configured on the first DL BWP and before a discontinuous reception, DRX, ON duration timer starts, starting, by the terminal device, the DRX ON duration timer at a starting moment of the DRX ON duration timer to enter a DRX activation period; wherein the second DL BWP is a BWP that is not configured with a monitoring occasion of WUS, characterized in that the method further comprises receiving (31, 41), by the terminal device, radio resource control, RRC, configuration information sent by a network device; wherein the RRC configuration information carries: a DRX configuration parameter, a BWP configuration parameter, and a WUS configuration parameter; wherein the DRX configuration parameter comprises: a long DRX cycle and the DRX ON duration timer; the BWP configuration parameter comprises at least one of: at least one DL BWP and a BWP deactivation timer; the WUS configuration parameter comprises: a first type of DL BWP configured with the monitoring occasion of the wake-up signal, WUS, and a second type of DL BWP not configured with the monitoring occasion of the WUS; wherein the first type of DL BWP comprises the first DL BWP; the second type of DL BWP comprises the second DL BWP; and the first type of DL BWP and the second type of BWP are DL BWPs in the at least one DL BWP.