The present invention provides a method for detecting interference between base stations and a base station. The method includes: receiving, by a first base station, a command sent by an operation maintenance center, wherein the command comprises a frame number of a specified frame; collecting, by the first base station, a signal in an uplink sub-frame of the specified frame, wherein the collected signal comprises a signal obtained by collecting an index sequence sent by a second base station in a downlink sub-frame of the specified frame; and determining, by the first base station, an index sequence of the second base station, wherein the index sequence of the second base station is selected from a plurality of candidate index sequences, each of which is used to be correlated with the collected signal. Embodiments of the present invention can improve the detection efficiency and performance.