A method for bandwidth part configuration, comprising: receiving configuration information, the configuration information being used to configure at least one frequency-domain bandwidth configuration, each of the at least one frequency-domain bandwidth configuration being used to configure a respective bandwidth part, wherein a size and position of a bandwidth part configured by each of the at least one frequency-domain bandwidth configuration is defined by adopting a same frequency-domain unit as a unit, the frequency-domain unit comprises one Resource Block, RB; and determining the at least one frequency-domain bandwidth configuration according to the configuration information, wherein the position of the bandwidth part configured by each frequency-domain bandwidth configuration is a relative offset of the bandwidth part configured by the frequency-domain bandwidth configuration relative to a cell carrier, the relative offset is defined by adopting the frequency-domain unit, and the relative offset comprises an offset of the frequency-domain low end of the bandwidth part configured by each frequency-domain bandwidth configuration relative to a frequency-domain low end of the cell carrier, wherein the configuration information comprises: serial number information of each frequency-domain bandwidth configuration; and information about the subcarrier spacing of the bandwidth part configured by each frequency-domain bandwidth configuration, and wherein information about the subcarrier spacing of the bandwidth part configured by each frequency-domain bandwidth configuration comprises: information of serial numbers of the subcarrier spacings of the bandwidth part configured by each frequency-domain bandwidth configuration; or information of a serial number of a parameter set of the bandwidth part configured by each frequency-domain bandwidth configuration, the parameter set of the bandwidth part configured by each frequency-domain bandwidth configuration at least comprising a subcarrier spacing and cyclic prefix of the bandwidth part configured by each frequency-domain bandwidth configuration. receiving configuration information, the configuration information being used to configure at least one frequency-domain bandwidth configuration, each of the at least one frequency-domain bandwidth configuration being used to configure a respective bandwidth part, wherein a size and position of a bandwidth part configured by each of the at least one frequency-domain bandwidth configuration is defined by adopting a same frequency-domain unit as a unit, the frequency-domain unit comprises one Resource Block, RB; and determining the at least one frequency-domain bandwidth configuration according to the configuration information, wherein the position of the bandwidth part configured by each frequency-domain bandwidth configuration is a relative offset of the bandwidth part configured by the frequency-domain bandwidth configuration relative to a cell carrier, the relative offset is defined by adopting the frequency-domain unit, and the relative offset comprises an offset of the frequency-domain low end of the bandwidth part configured by each frequency-domain bandwidth configuration relative to a frequency-domain low end of the cell carrier, wherein the configuration information comprises: serial number information of each frequency-domain bandwidth configuration; and information about the subcarrier spacing of the bandwidth part configured by each frequency-domain bandwidth configuration, and wherein information about the subcarrier spacing of the bandwidth part configured by each frequency-domain bandwidth configuration comprises: information of serial numbers of the subcarrier spacings of the bandwidth part configured by each frequency-domain bandwidth configuration; or information of a serial number of a parameter set of the bandwidth part configured by each frequency-domain bandwidth configuration, the parameter set of the bandwidth part configured by each frequency-domain bandwidth configuration at least comprising a subcarrier spacing and cyclic prefix of the bandwidth part configured by each frequency-domain bandwidth configuration. serial number information of each frequency-domain bandwidth configuration; and information about the subcarrier spacing of the bandwidth part configured by each frequency-domain bandwidth configuration, and wherein information about the subcarrier spacing of the bandwidth part configured by each frequency-domain bandwidth configuration comprises: information of serial numbers of the subcarrier spacings of the bandwidth part configured by each frequency-domain bandwidth configuration; or information of a serial number of a parameter set of the bandwidth part configured by each frequency-domain bandwidth configuration, the parameter set of the bandwidth part configured by each frequency-domain bandwidth configuration at least comprising a subcarrier spacing and cyclic prefix of the bandwidth part configured by each frequency-domain bandwidth configuration. information of serial numbers of the subcarrier spacings of the bandwidth part configured by each frequency-domain bandwidth configuration; or information of a serial number of a parameter set of the bandwidth part configured by each frequency-domain bandwidth configuration, the parameter set of the bandwidth part configured by each frequency-domain bandwidth configuration at least comprising a subcarrier spacing and cyclic prefix of the bandwidth part configured by each frequency-domain bandwidth configuration.