A method for searching for a CORESET of RMSI includes: receiving, from a base station, a synchronous signal block (SSB) carrying indication information, wherein the indication information is configured to indicate time domain information of the CORESET of the RMSI corresponding a plurality of SSBs and a number of frequency-domain resource elements occupied by the CORESET of the RMSI; obtaining the indication information by parsing the received SSB; and searching for, according to the indication information, the CORESET of the RMSI in a corresponding time domain and a bandwidth portion corresponding to the received SSB.