A wireless communication method, comprising: receiving, by a terminal device, at least one physical downlink control channel, PDCCH, sent by a network device according to a plurality of transmit configuration instruction, TCI, states, wherein the at least one PDCCH is used to schedule a same first channel; determining, by the terminal device, a TCI state of the first channel according to information of first downlink control information, DCI, and at least one time interval, wherein the first DCI is DCI carried on the at least one PDCCH; the at least one time interval is a time interval between the at least one PDCCH and the first channel; wherein the wireless communication method is characterized in that the at least one time interval is one time interval, the one time interval is a time interval between one PDCCH among the at least one PDCCH and the first channel; wherein determining, by the terminal device, the TCI state of the first channel according to the information of the first downlink control information and the at least one time interval comprises: if a format of the DCI is a second format, the DCI does not comprise the TCI state indication, and the one time interval is greater than or equal to a preset threshold, determining, by the terminal device, the TCI state of the first channel according to a TCI state of a CORESET of a first PDCCH; wherein determining, by the terminal device, the TCI state of the first channel according to the TCI state of the first CORESET in the first time unit comprises: if there are two TCI states of the first CORESET, determining, by the terminal device, a second TCI state as the TCI state of the first channel, wherein the second TCI state is a TCI state with a smallest identity in the first CORESET. receiving, by a terminal device, at least one physical downlink control channel, PDCCH, sent by a network device according to a plurality of transmit configuration instruction, TCI, states, wherein the at least one PDCCH is used to schedule a same first channel; determining, by the terminal device, a TCI state of the first channel according to information of first downlink control information, DCI, and at least one time interval, wherein the first DCI is DCI carried on the at least one PDCCH; the at least one time interval is a time interval between the at least one PDCCH and the first channel; wherein the wireless communication method is characterized in that the at least one time interval is one time interval, the one time interval is a time interval between one PDCCH among the at least one PDCCH and the first channel; wherein determining, by the terminal device, the TCI state of the first channel according to the information of the first downlink control information and the at least one time interval comprises: if a format of the DCI is a second format, the DCI does not comprise the TCI state indication, and the one time interval is greater than or equal to a preset threshold, determining, by the terminal device, the TCI state of the first channel according to a TCI state of a CORESET of a first PDCCH; wherein determining, by the terminal device, the TCI state of the first channel according to the TCI state of the first CORESET in the first time unit comprises: if there are two TCI states of the first CORESET, determining, by the terminal device, a second TCI state as the TCI state of the first channel, wherein the second TCI state is a TCI state with a smallest identity in the first CORESET. if a format of the DCI is a second format, the DCI does not comprise the TCI state indication, and the one time interval is greater than or equal to a preset threshold, determining, by the terminal device, the TCI state of the first channel according to a TCI state of a CORESET of a first PDCCH; wherein determining, by the terminal device, the TCI state of the first channel according to the TCI state of the first CORESET in the first time unit comprises: if there are two TCI states of the first CORESET, determining, by the terminal device, a second TCI state as the TCI state of the first channel, wherein the second TCI state is a TCI state with a smallest identity in the first CORESET.