Disclosed in the present application are a method and apparatus for indicating TCI, a base station, and a storage medium. The method includes: when TCI in DCI configured by a base station for a UE corresponds to at least two TCI states, indicating a correspondence between a CDM group and a TCI state by mean of the DCI, and the CDM group is a CDM group to which a DMRS port allocated by the base station for the UE belongs.