A method for transferring data, comprising: transferring data with a base station via a first link, a second link offloading for the first link; transmitting, if a radio link failure, RLF, occurs on the first link, an RLF indication message to the base station, wherein the RLF indication message is used to notify the base station that the RLF occurs on the first link; transferring, over the second link, at least a portion of the data on the first link; wherein, in a case where the offloading by the second link for the first link is offloading not based on a radio bearer, RB, offloading, the RLF indication message is also used to request the base station to offload onto the second link at least a portion of downlink data scheduled on the first link; the transferring, over the second link, at least a portion of the data on the first link comprises: offloading onto the second link at least a portion of uplink data scheduled on the first link; and, wherein, in a case where offloading by the second link for the first link is offloading based on an RB and a signaling radio bearer, SRB, is scheduled on the second link for transfer, the RLF indication message is also used to request the base station to configure at least one RB on the first link, so that the at least one RB is offloaded onto the second link; the method further comprises: receiving, via the SRB, an offloading reconfiguration message transmitted by the base station according to the RLF indication message, wherein the offloading reconfiguration message is used to indicate information of at least one RB offloaded from the first link onto the second link; the transferring, over the second link, at least a portion of the data on the first link comprises: transferring, according to the offloading reconfiguration message and over the second link, the at least one RB on the first link. transferring data with a base station via a first link, a second link offloading for the first link; transmitting, if a radio link failure, RLF, occurs on the first link, an RLF indication message to the base station, wherein the RLF indication message is used to notify the base station that the RLF occurs on the first link; transferring, over the second link, at least a portion of the data on the first link; wherein, in a case where the offloading by the second link for the first link is offloading not based on a radio bearer, RB, offloading, the RLF indication message is also used to request the base station to offload onto the second link at least a portion of downlink data scheduled on the first link; the transferring, over the second link, at least a portion of the data on the first link comprises: offloading onto the second link at least a portion of uplink data scheduled on the first link; and, wherein, in a case where offloading by the second link for the first link is offloading based on an RB and a signaling radio bearer, SRB, is scheduled on the second link for transfer, the RLF indication message is also used to request the base station to configure at least one RB on the first link, so that the at least one RB is offloaded onto the second link; the method further comprises: receiving, via the SRB, an offloading reconfiguration message transmitted by the base station according to the RLF indication message, wherein the offloading reconfiguration message is used to indicate information of at least one RB offloaded from the first link onto the second link; the transferring, over the second link, at least a portion of the data on the first link comprises: transferring, according to the offloading reconfiguration message and over the second link, the at least one RB on the first link.