A method for acquiring neighboring cell information, comprising: receiving at an operative support system, OSS, identifier information of a neighboring cell sent by a base station, wherein a Cell Global Identifier, CGI, and a Physical Cell Identifier, PCI, comprised in the identifier information of the neighboring cell are obtained for the neighboring cell and sent to the base station by a user equipment; characterized in that: when finding a first CGI according to preconfigured cell information in the OSS and the CGI and the PCI comprised in the identifier information of the neighboring cell, determining whether the first CGI is the same as the CGI comprised in the identifier information of the neighboring cell, wherein the first CGI and the CGI comprised in the identifier information of the neighboring cell have a same base station id and cell id, and a PCI corresponding to the first CGI is the same as the PCI comprised in the identifier information of the neighboring cell; when the first CGI is different from the CGI comprised in the identifier information of the neighboring cell, determining the first CGI as a CGI of the neighboring cell; when the first CGI is the same as the CGI comprised in the identifier information of the neighboring cell, determining the CGI comprised in the identifier information of the neighboring cell as a CGI of the neighboring cell; sending, to the base station, information used for indicating the CGI of the neighboring cell; acquiring, according to the CGI of the neighboring cell and a correspondence between all or part of information in the CGI and a Public Land Mobile Network, PLMN, information set, a PLMN information set corresponding to the neighboring cell; and sending, to the base station, the PLMN information set corresponding to the neighboring cell. receiving at an operative support system, OSS, identifier information of a neighboring cell sent by a base station, wherein a Cell Global Identifier, CGI, and a Physical Cell Identifier, PCI, comprised in the identifier information of the neighboring cell are obtained for the neighboring cell and sent to the base station by a user equipment; characterized in that: when finding a first CGI according to preconfigured cell information in the OSS and the CGI and the PCI comprised in the identifier information of the neighboring cell, determining whether the first CGI is the same as the CGI comprised in the identifier information of the neighboring cell, wherein the first CGI and the CGI comprised in the identifier information of the neighboring cell have a same base station id and cell id, and a PCI corresponding to the first CGI is the same as the PCI comprised in the identifier information of the neighboring cell; when the first CGI is different from the CGI comprised in the identifier information of the neighboring cell, determining the first CGI as a CGI of the neighboring cell; when the first CGI is the same as the CGI comprised in the identifier information of the neighboring cell, determining the CGI comprised in the identifier information of the neighboring cell as a CGI of the neighboring cell; sending, to the base station, information used for indicating the CGI of the neighboring cell; acquiring, according to the CGI of the neighboring cell and a correspondence between all or part of information in the CGI and a Public Land Mobile Network, PLMN, information set, a PLMN information set corresponding to the neighboring cell; and sending, to the base station, the PLMN information set corresponding to the neighboring cell. when finding a first CGI according to preconfigured cell information in the OSS and the CGI and the PCI comprised in the identifier information of the neighboring cell, determining whether the first CGI is the same as the CGI comprised in the identifier information of the neighboring cell, wherein the first CGI and the CGI comprised in the identifier information of the neighboring cell have a same base station id and cell id, and a PCI corresponding to the first CGI is the same as the PCI comprised in the identifier information of the neighboring cell; when the first CGI is different from the CGI comprised in the identifier information of the neighboring cell, determining the first CGI as a CGI of the neighboring cell; when the first CGI is the same as the CGI comprised in the identifier information of the neighboring cell, determining the CGI comprised in the identifier information of the neighboring cell as a CGI of the neighboring cell; sending, to the base station, information used for indicating the CGI of the neighboring cell; acquiring, according to the CGI of the neighboring cell and a correspondence between all or part of information in the CGI and a Public Land Mobile Network, PLMN, information set, a PLMN information set corresponding to the neighboring cell; and sending, to the base station, the PLMN information set corresponding to the neighboring cell.