A method for indicating time-domain information of a control resource set (CORESET) of remaining minimum system information (RMSI) includes: adding indication information to a physical broadcast channel (PBCH) of a synchronization signal block (SSB), the indication information comprising at least one of the following: both first indication information and second indication information, third indication information, or fourth indication information; and sending, by means of beam scanning, to user equipment (UE) the SSB carrying the indication information.