A carrier processing method for a cell in a multi-carrier base station, comprising: acquiring control information of each of at least two multi-carrier modules associated with carriers; according to the acquired control information, determining a carrier used by each multi-carrier module; and performing, by each multi-carrier module, carrier power sharing processing according to the determined carrier; wherein the acquiring the control information of each multi-carrier module associated with the carriers comprises: acquiring carrier control information of each multi-carrier module, wherein the carrier control information of the multi-carrier module comprises: power of the carrier at a current time slot, a working frequency point of the carrier, and a working frequency band of the multi-carrier module; the determining, according to the acquired control information, the carrier used by each multi-carrier module specifically comprises: determining power of each multi-carrier module and total power of all multi-carrier modules; and when power at the current time slot of one of the at least two multi-carrier modules is greater than a first threshold, and the total power at the current time slot of all the multi-carrier modules is smaller than or equal to a second threshold, determining that a shared carrier in the multi-carrier module is transmitted by another multi-carrier module having remaining power, wherein the shared carrier having a working frequency point in an intersection of working frequency bands of the multi-carrier module, and the shared carrier in the intersection is a carrier capable of implementing cross-module power sharing, and the multi-carrier module that transmits the shared carrier. acquiring control information of each of at least two multi-carrier modules associated with carriers; according to the acquired control information, determining a carrier used by each multi-carrier module; and performing, by each multi-carrier module, carrier power sharing processing according to the determined carrier; wherein the acquiring the control information of each multi-carrier module associated with the carriers comprises: acquiring carrier control information of each multi-carrier module, wherein the carrier control information of the multi-carrier module comprises: power of the carrier at a current time slot, a working frequency point of the carrier, and a working frequency band of the multi-carrier module; the determining, according to the acquired control information, the carrier used by each multi-carrier module specifically comprises: determining power of each multi-carrier module and total power of all multi-carrier modules; and when power at the current time slot of one of the at least two multi-carrier modules is greater than a first threshold, and the total power at the current time slot of all the multi-carrier modules is smaller than or equal to a second threshold, determining that a shared carrier in the multi-carrier module is transmitted by another multi-carrier module having remaining power, wherein the shared carrier having a working frequency point in an intersection of working frequency bands of the multi-carrier module, and the shared carrier in the intersection is a carrier capable of implementing cross-module power sharing, and the multi-carrier module that transmits the shared carrier. acquiring carrier control information of each multi-carrier module, wherein the carrier control information of the multi-carrier module comprises: power of the carrier at a current time slot, a working frequency point of the carrier, and a working frequency band of the multi-carrier module; the determining, according to the acquired control information, the carrier used by each multi-carrier module specifically comprises: determining power of each multi-carrier module and total power of all multi-carrier modules; and when power at the current time slot of one of the at least two multi-carrier modules is greater than a first threshold, and the total power at the current time slot of all the multi-carrier modules is smaller than or equal to a second threshold, determining that a shared carrier in the multi-carrier module is transmitted by another multi-carrier module having remaining power, wherein the shared carrier having a working frequency point in an intersection of working frequency bands of the multi-carrier module, and the shared carrier in the intersection is a carrier capable of implementing cross-module power sharing, and the multi-carrier module that transmits the shared carrier. determining power of each multi-carrier module and total power of all multi-carrier modules; and when power at the current time slot of one of the at least two multi-carrier modules is greater than a first threshold, and the total power at the current time slot of all the multi-carrier modules is smaller than or equal to a second threshold, determining that a shared carrier in the multi-carrier module is transmitted by another multi-carrier module having remaining power, wherein the shared carrier having a working frequency point in an intersection of working frequency bands of the multi-carrier module, and the shared carrier in the intersection is a carrier capable of implementing cross-module power sharing, and the multi-carrier module that transmits the shared carrier.