A method for transmitting a beam failure recovery request, applied to a terminal device, comprising: determining that a beam failure event has occurred in a first cell, wherein the first cell is served by a first network device; and transmitting a beam failure recovery request, BFRQ, to a second network device in a second cell, wherein the BFRQ is used to indicate that a beam failure event has occurred in the first cell, and the second cell is served by the second network device; wherein the second cell is different from the first cell; wherein the transmitting a BFRQ to a second network device in a second cell comprises: transmitting the BFRQ to the second network device in the second cell through a first bearer, wherein the first bearer comprises at least one of a physical random access channel, PRACH, a physical uplink control channel, PUCCH, a semi-persistent-physical uplink shared channel, SP-PUSCH, and a media access control-control element, MAC-CE, command; characterized in that, in a case in which the first bearer comprises at least one of the PUCCH or the SP-PUSCH, the transmitting the BFRQ to the second network device in the second cell through a first bearer comprises: transmitting the BFRQ to the second network device in the second cell through a target channel according to a second preset rule if the target channel comprises second information, wherein the target channel is the PUCCH or the SP-PUSCH; and the second preset rule is: transmitting the BFRQ based on priorities of the second information and the BFRQ, or prioritizing transmission of the BFRQ. determining that a beam failure event has occurred in a first cell, wherein the first cell is served by a first network device; and transmitting a beam failure recovery request, BFRQ, to a second network device in a second cell, wherein the BFRQ is used to indicate that a beam failure event has occurred in the first cell, and the second cell is served by the second network device; wherein the second cell is different from the first cell; wherein the transmitting a BFRQ to a second network device in a second cell comprises: transmitting the BFRQ to the second network device in the second cell through a first bearer, wherein the first bearer comprises at least one of a physical random access channel, PRACH, a physical uplink control channel, PUCCH, a semi-persistent-physical uplink shared channel, SP-PUSCH, and a media access control-control element, MAC-CE, command; characterized in that, in a case in which the first bearer comprises at least one of the PUCCH or the SP-PUSCH, the transmitting the BFRQ to the second network device in the second cell through a first bearer comprises: transmitting the BFRQ to the second network device in the second cell through a target channel according to a second preset rule if the target channel comprises second information, wherein the target channel is the PUCCH or the SP-PUSCH; and the second preset rule is: transmitting the BFRQ based on priorities of the second information and the BFRQ, or prioritizing transmission of the BFRQ. transmitting the BFRQ to the second network device in the second cell through a first bearer, wherein the first bearer comprises at least one of a physical random access channel, PRACH, a physical uplink control channel, PUCCH, a semi-persistent-physical uplink shared channel, SP-PUSCH, and a media access control-control element, MAC-CE, command; characterized in that, in a case in which the first bearer comprises at least one of the PUCCH or the SP-PUSCH, the transmitting the BFRQ to the second network device in the second cell through a first bearer comprises: transmitting the BFRQ to the second network device in the second cell through a target channel according to a second preset rule if the target channel comprises second information, wherein the target channel is the PUCCH or the SP-PUSCH; and the second preset rule is: transmitting the BFRQ based on priorities of the second information and the BFRQ, or prioritizing transmission of the BFRQ. transmitting the BFRQ to the second network device in the second cell through a target channel according to a second preset rule if the target channel comprises second information, wherein the target channel is the PUCCH or the SP-PUSCH; and the second preset rule is: transmitting the BFRQ based on priorities of the second information and the BFRQ, or prioritizing transmission of the BFRQ.