A downlink control information transmission method, characterized in that, the method comprises: determining, by a base station, at least one beam direction for transmitting downlink control information of a terminal, and distributing, by the base station according to the at least one determined beam direction, a beam direction for each of at least one control resource set configured by the base station for the terminal, wherein the at least one control resource set is configured to transmit the downlink control information, and the beam directions distributed for different control resource sets in the at least one control resource set are same or different, and the beam directions distributed for different candidates of the downlink control channel carrying the downlink control information in each control resource set are same or different; generating, by the base station, first downlink control channel configuration information according to a result of distribution of the beam direction for each of the at least one control resource set, the first downlink control channel configuration information comprises quasi-co-location, QCL, information being used for indicating a beam direction of the downlink control information transmitted by the base station to the terminal; and transmitting, by the base station, the downlink control information to the terminal in the at least one beam direction after the base station transmits the first downlink control channel configuration information to the terminal; wherein the QCL information is difference information and when a reference signal of a beam management procedure is taken as a base signal, the QCL information is difference information between a reference signal for the terminal to demodulate a downlink control channel carrying the downlink control information and the reference signal of the beam management procedure of the terminal; or, when a reference signal, received by the terminal, of a downlink synchronization procedure or a demodulation reference signal used for demodulating broadcast information that is received by the terminal and carried by a physical broadcast channel is taken as the base signal, the QCL information is difference information between the reference signal for the terminal to demodulate the downlink control channel carrying the downlink control information and the reference signal of the downlink synchronization procedure, or the QCL information is difference information between the reference signal for the terminal to demodulate the downlink control channel carrying the downlink control information and the demodulation reference signal used for demodulating the broadcast information carried by the physical broadcast channel. determining, by a base station, at least one beam direction for transmitting downlink control information of a terminal, and distributing, by the base station according to the at least one determined beam direction, a beam direction for each of at least one control resource set configured by the base station for the terminal, wherein the at least one control resource set is configured to transmit the downlink control information, and the beam directions distributed for different control resource sets in the at least one control resource set are same or different, and the beam directions distributed for different candidates of the downlink control channel carrying the downlink control information in each control resource set are same or different; generating, by the base station, first downlink control channel configuration information according to a result of distribution of the beam direction for each of the at least one control resource set, the first downlink control channel configuration information comprises quasi-co-location, QCL, information being used for indicating a beam direction of the downlink control information transmitted by the base station to the terminal; and transmitting, by the base station, the downlink control information to the terminal in the at least one beam direction after the base station transmits the first downlink control channel configuration information to the terminal; wherein the QCL information is difference information and when a reference signal of a beam management procedure is taken as a base signal, the QCL information is difference information between a reference signal for the terminal to demodulate a downlink control channel carrying the downlink control information and the reference signal of the beam management procedure of the terminal; or, when a reference signal, received by the terminal, of a downlink synchronization procedure or a demodulation reference signal used for demodulating broadcast information that is received by the terminal and carried by a physical broadcast channel is taken as the base signal, the QCL information is difference information between the reference signal for the terminal to demodulate the downlink control channel carrying the downlink control information and the reference signal of the downlink synchronization procedure, or the QCL information is difference information between the reference signal for the terminal to demodulate the downlink control channel carrying the downlink control information and the demodulation reference signal used for demodulating the broadcast information carried by the physical broadcast channel.