A Bandwidth Part, BWP, configuration method applied for a network device, comprising: receiving User Equipment, UE, capability information carrying BWP capability information reported by a UE; and configuring an air interface parameter set of at least one BWP for the UE in accordance with the UE capability information, the air interface parameter set comprising at least one air interface parameter of the BWP; characterized in that the configuring the air interface parameter set of the at least one BWP for the UE in accordance with the UE capability information comprises: configuring at least one BWP and the air interface parameter set of the at least one BWP for the UE in accordance with the UE capability information; and transmitting the air interface parameter set of the at least one BWP to the UE through a broadcast message or preset signaling; wherein the transmitting the air interface parameter set of the at least one BWP to the UE through the broadcast message or preset signaling comprises: transmitting information about a correspondence between uplink and downlink BWPs in the air interface parameter set of the at least one BWP to the UE through the broadcast message or the preset signaling, wherein the uplink and downlink BWPs comprise a BWP pair consisting of an uplink BWP and a downlink BWP, and the information about the correspondence between the uplink and downlink BWPs comprises at least one of information about a feedback relationship between the uplink and downlink BWPs, scheduling information about the uplink and downlink BWPs, information about Timing Advance, TA, of the uplink and downlink BWPs, or path loss information about the uplink and downlink BWPs. receiving User Equipment, UE, capability information carrying BWP capability information reported by a UE; and configuring an air interface parameter set of at least one BWP for the UE in accordance with the UE capability information, the air interface parameter set comprising at least one air interface parameter of the BWP; characterized in that the configuring the air interface parameter set of the at least one BWP for the UE in accordance with the UE capability information comprises: configuring at least one BWP and the air interface parameter set of the at least one BWP for the UE in accordance with the UE capability information; and transmitting the air interface parameter set of the at least one BWP to the UE through a broadcast message or preset signaling; configuring at least one BWP and the air interface parameter set of the at least one BWP for the UE in accordance with the UE capability information; and transmitting the air interface parameter set of the at least one BWP to the UE through a broadcast message or preset signaling; wherein the transmitting the air interface parameter set of the at least one BWP to the UE through the broadcast message or preset signaling comprises: transmitting information about a correspondence between uplink and downlink BWPs in the air interface parameter set of the at least one BWP to the UE through the broadcast message or the preset signaling, wherein the uplink and downlink BWPs comprise a BWP pair consisting of an uplink BWP and a downlink BWP, and the information about the correspondence between the uplink and downlink BWPs comprises at least one of information about a feedback relationship between the uplink and downlink BWPs, scheduling information about the uplink and downlink BWPs, information about Timing Advance, TA, of the uplink and downlink BWPs, or path loss information about the uplink and downlink BWPs. transmitting information about a correspondence between uplink and downlink BWPs in the air interface parameter set of the at least one BWP to the UE through the broadcast message or the preset signaling, wherein the uplink and downlink BWPs comprise a BWP pair consisting of an uplink BWP and a downlink BWP, and the information about the correspondence between the uplink and downlink BWPs comprises at least one of information about a feedback relationship between the uplink and downlink BWPs, scheduling information about the uplink and downlink BWPs, information about Timing Advance, TA, of the uplink and downlink BWPs, or path loss information about the uplink and downlink BWPs.