A method, performed by a first base station, of sharing a frequency resource with a second base station in a wireless communication system is provided. The method includes transmitting, to channel measurement target terminals determined from among terminals communicating with the first base station using first frequency resources, information instructing to transmit a signal for channel measurement to the second base station; transmitting, to the second base station, information indicating that the signal for channel measurement is to be transmitted from the channel measurement target terminals; receiving, from the second base station, measurement information about channels between the second base station and the channel measurement target terminals; determining a shared frequency resource to be shared with the second base station from among the first frequency resources, based on the measurement information about the channels between the second base station and the channel measurement target terminals; and transmitting information about the shared frequency resource to the second base station.