A method for monitoring a control channel, comprising: in a physical downlink control channel, PDCCH, search space, receiving, by a terminal device, a first PDCCH on at least one serving cell among multiple serving cells, wherein the first PDCCH is used for indicating PDCCH skipping to the terminal device; and performing, by the terminal device, the PDCCH skipping according to indication of the first PDCCH, wherein the method further comprises: receiving, by the terminal device, radio resource control RRC configuration information, the RRC configuration information comprises a duration set, and the duration set comprises durations of performing the PDCCH skipping by the terminal device, the first PDCCH is further used for indicating indexes of durations, in the duration set, for performing the PDCCH skipping by the terminal device, characterized in that receiving, by the terminal device, the first PDCCH on at least one serving cell among multiple serving cells comprises: receiving, by the terminal device, the first PDCCH on one serving cell among the multiple serving cells, and in that performing, by the terminal device, the PDCCH skipping according to the indication of the first PDCCH comprises: performing, by the terminal device, the PDCCH skipping on a first serving cell according to the indication of the first PDCCH on the one serving cell, wherein the first serving cell comprises at least one serving cell among the multiple serving cells. in a physical downlink control channel, PDCCH, search space, receiving, by a terminal device, a first PDCCH on at least one serving cell among multiple serving cells, wherein the first PDCCH is used for indicating PDCCH skipping to the terminal device; and performing, by the terminal device, the PDCCH skipping according to indication of the first PDCCH, wherein the method further comprises: receiving, by the terminal device, radio resource control RRC configuration information, the RRC configuration information comprises a duration set, and the duration set comprises durations of performing the PDCCH skipping by the terminal device, the first PDCCH is further used for indicating indexes of durations, in the duration set, for performing the PDCCH skipping by the terminal device, characterized in that receiving, by the terminal device, the first PDCCH on at least one serving cell among multiple serving cells comprises: receiving, by the terminal device, the first PDCCH on one serving cell among the multiple serving cells, and in that performing, by the terminal device, the PDCCH skipping according to the indication of the first PDCCH comprises: performing, by the terminal device, the PDCCH skipping on a first serving cell according to the indication of the first PDCCH on the one serving cell, wherein the first serving cell comprises at least one serving cell among the multiple serving cells. receiving, by the terminal device, radio resource control RRC configuration information, the RRC configuration information comprises a duration set, and the duration set comprises durations of performing the PDCCH skipping by the terminal device, the first PDCCH is further used for indicating indexes of durations, in the duration set, for performing the PDCCH skipping by the terminal device, characterized in that receiving, by the terminal device, the first PDCCH on at least one serving cell among multiple serving cells comprises: receiving, by the terminal device, the first PDCCH on one serving cell among the multiple serving cells, and in that performing, by the terminal device, the PDCCH skipping according to the indication of the first PDCCH comprises: performing, by the terminal device, the PDCCH skipping on a first serving cell according to the indication of the first PDCCH on the one serving cell, wherein the first serving cell comprises at least one serving cell among the multiple serving cells.