A method for automatically optimizing a neighbor list for processing handover in an asynchronous wideband code division multiple access, WCDMA, network, comprising: (a) collecting neighbor list data, call fault data, handover statistical data, base station location data and primary scramble code, PSC, information data of each base station sub-cell or sector in a nationwide network; (b) extracting all target sub-cells or sectors available for handover by analyzing the collected data; (c) endowing a weighting factor to the extracted target sub-cells or sectors according to importance of the type of the target sub-cells and then sorting calculated results so as to determine priorities; and (d) subsequently inputting the target sub-cell or sector information to the neighbor list according to the priorities, characterized in that the step (c) includes: calculating the number of intermediate base stations positioned within a distance between a source base station and a target base station and existing within a threshold angle toward the target base station based on the source base station and a threshold angle toward the source base station based on the target base station, as for the extracted target sub-cells or sectors; and determining priorities of the target sub-cells or sectors by sorting such that a target base station with a lower index, calculated by the number of intermediate base stations and the distance, has a higher priority. (a) collecting neighbor list data, call fault data, handover statistical data, base station location data and primary scramble code, PSC, information data of each base station sub-cell or sector in a nationwide network; (b) extracting all target sub-cells or sectors available for handover by analyzing the collected data; (c) endowing a weighting factor to the extracted target sub-cells or sectors according to importance of the type of the target sub-cells and then sorting calculated results so as to determine priorities; and (d) subsequently inputting the target sub-cell or sector information to the neighbor list according to the priorities, characterized in that the step (c) includes: calculating the number of intermediate base stations positioned within a distance between a source base station and a target base station and existing within a threshold angle toward the target base station based on the source base station and a threshold angle toward the source base station based on the target base station, as for the extracted target sub-cells or sectors; and determining priorities of the target sub-cells or sectors by sorting such that a target base station with a lower index, calculated by the number of intermediate base stations and the distance, has a higher priority. calculating the number of intermediate base stations positioned within a distance between a source base station and a target base station and existing within a threshold angle toward the target base station based on the source base station and a threshold angle toward the source base station based on the target base station, as for the extracted target sub-cells or sectors; and determining priorities of the target sub-cells or sectors by sorting such that a target base station with a lower index, calculated by the number of intermediate base stations and the distance, has a higher priority.