A method for configuring downlink control information includes: configuring target downlink control information (DCI) for a terminal, the target DCI including control information required by at least one target time-domain transmission unit on at least one target bandwidth portion; and transmitting to the terminal a physical downlink control channel (PDCCH) carrying the target DCI, the target DCI being used by the terminal to perform a corresponding control operation on the target time-domain transmission unit of the indicated target bandwidth portion. As such, a base station can configure for the terminal the control information required by the at least one target time-domain transmission unit on the at least one target bandwidth part, thereby improving the performance of a 5G system.