An interference cancellation method, comprising: obtaining, by a first base station, system information of a neighboring cell; determining, by the first base station, interference channel information of a second base station to the first base station based on the system information, wherein the second base station is a base station in a coverage area of the neighboring cell; and receiving, by the first base station based on the interference channel information, an uplink signal sent by user equipment in a coverage area of the first base station, wherein the obtaining, by a first base station, system information of a neighboring cell comprises: obtaining, by the first base station, physical cell identifier, PCI, information of the neighboring cell by using a sniffer configured to act as data packet capturing tool; and obtaining, by the first base station, the system information of the neighboring cell by using the PCI information, wherein the system information comprises a synchronization sequence and a cell-specific reference signal, CRS, pilot sequence of the neighboring cell, wherein the determining, by the first base station, interference channel information of a second base station to the first base station based on the system information comprises: determining, by the first base station, a multiple-input multiple-output system, MIMO, interference channel matrix of the second base station to the first base station based on the system information, wherein the determining, by the first base station, a MIMO interference channel matrix of the second base station to the first base station based on the system information comprises: determining, by the first base station, the MIMO interference channel matrix of the second base station to the first base station by using the synchronization sequence and the CRS pilot sequence of the neighboring cell. obtaining, by a first base station, system information of a neighboring cell; determining, by the first base station, interference channel information of a second base station to the first base station based on the system information, wherein the second base station is a base station in a coverage area of the neighboring cell; and receiving, by the first base station based on the interference channel information, an uplink signal sent by user equipment in a coverage area of the first base station, wherein the obtaining, by a first base station, system information of a neighboring cell comprises: obtaining, by the first base station, physical cell identifier, PCI, information of the neighboring cell by using a sniffer configured to act as data packet capturing tool; and obtaining, by the first base station, the system information of the neighboring cell by using the PCI information, wherein the system information comprises a synchronization sequence and a cell-specific reference signal, CRS, pilot sequence of the neighboring cell, wherein the determining, by the first base station, interference channel information of a second base station to the first base station based on the system information comprises: determining, by the first base station, a multiple-input multiple-output system, MIMO, interference channel matrix of the second base station to the first base station based on the system information, wherein the determining, by the first base station, a MIMO interference channel matrix of the second base station to the first base station based on the system information comprises: determining, by the first base station, the MIMO interference channel matrix of the second base station to the first base station by using the synchronization sequence and the CRS pilot sequence of the neighboring cell. obtaining, by the first base station, physical cell identifier, PCI, information of the neighboring cell by using a sniffer configured to act as data packet capturing tool; and obtaining, by the first base station, the system information of the neighboring cell by using the PCI information, wherein the system information comprises a synchronization sequence and a cell-specific reference signal, CRS, pilot sequence of the neighboring cell, wherein the determining, by the first base station, interference channel information of a second base station to the first base station based on the system information comprises: determining, by the first base station, a multiple-input multiple-output system, MIMO, interference channel matrix of the second base station to the first base station based on the system information, wherein the determining, by the first base station, a MIMO interference channel matrix of the second base station to the first base station based on the system information comprises: determining, by the first base station, the MIMO interference channel matrix of the second base station to the first base station by using the synchronization sequence and the CRS pilot sequence of the neighboring cell.