A method for reporting, by a user equipment (UE), channel state information (CSI) in a wireless communication system includes transmitting, to a base station, UE capability information related to at least one of channel state information-reference signal (CSI-RS) resources or CSI-RS ports; receiving, from the base station, CSI-RS configuration information; receiving, from the base station, CSI-RS based on the CSI-RS configuration information; acquiring the CSI based on the CSI-RS; and reporting, to the base station, the CSI. Further, the UE capability information includes information for a maximum number related to a configuration of the CSI-RS.