The present invention provides a method of processing reference signal configuration information, a base station and a terminal. The method includes: sending, by a base station, first reference signal configuration information and at least one piece of second reference signal configuration information to a terminal, such that the terminal performs detection of downlink channel state information according to the first reference signal configuration information and the at least one piece of second reference signal configuration information, wherein the first reference signal configuration information includes configuration information of a reference signal sent by antenna port(s) identified by a first number of ports, and the second reference signal configuration information includes configuration information of a reference signal sent by at least one antenna port of other antenna ports than the antenna port(s) identified by the first number of ports among the antenna ports configured by the base station.