A method for reconstructing a standby node database, comprising: obtaining file information of a first page-structure file in an active node database and file information of a second page-structure file in a standby node database, wherein the first page-structure file and the second page-structure file are data files corresponding to each other; comparing the file information of the first page-structure file with the file information of the second page-structure file, to obtain a comparison result whether the file information is the same; and reconstructing the standby node database according to the comparison result whether the file information is the same; wherein: the reconstructing the standby node database according to the comparison result whether the file information is the same comprises: when the comparison result whether the file information is the same is that the file information of the first page-structure file is different from the file information of the second page-structure file, then replacing the second page-structure file with the first page-structure file; the file information comprises a file size; and the comparing the file information of the first page-structure file with the file information of the second page-structure file is specifically: comparing a file size of the first page-structure file with a file size of the second page-structure file; when the comparison result of the file information is same, the reconstructing the standby node database is specifically: comparing one by one version information of each page in the first page-structure file with version information of each page in the second page-structure file; and for pages of different page version information, replacing a corresponding page in the second page-structure file with a page in the first page-structure file. obtaining file information of a first page-structure file in an active node database and file information of a second page-structure file in a standby node database, wherein the first page-structure file and the second page-structure file are data files corresponding to each other; comparing the file information of the first page-structure file with the file information of the second page-structure file, to obtain a comparison result whether the file information is the same; and reconstructing the standby node database according to the comparison result whether the file information is the same; wherein: the reconstructing the standby node database according to the comparison result whether the file information is the same comprises: when the comparison result whether the file information is the same is that the file information of the first page-structure file is different from the file information of the second page-structure file, then replacing the second page-structure file with the first page-structure file; the file information comprises a file size; and the comparing the file information of the first page-structure file with the file information of the second page-structure file is specifically: comparing a file size of the first page-structure file with a file size of the second page-structure file; when the comparison result of the file information is same, the reconstructing the standby node database is specifically: comparing one by one version information of each page in the first page-structure file with version information of each page in the second page-structure file; and for pages of different page version information, replacing a corresponding page in the second page-structure file with a page in the first page-structure file. when the comparison result whether the file information is the same is that the file information of the first page-structure file is different from the file information of the second page-structure file, then replacing the second page-structure file with the first page-structure file; the file information comprises a file size; and the comparing the file information of the first page-structure file with the file information of the second page-structure file is specifically: comparing a file size of the first page-structure file with a file size of the second page-structure file; when the comparison result of the file information is same, the reconstructing the standby node database is specifically: comparing one by one version information of each page in the first page-structure file with version information of each page in the second page-structure file; and for pages of different page version information, replacing a corresponding page in the second page-structure file with a page in the first page-structure file. comparing a file size of the first page-structure file with a file size of the second page-structure file; when the comparison result of the file information is same, the reconstructing the standby node database is specifically: comparing one by one version information of each page in the first page-structure file with version information of each page in the second page-structure file; and for pages of different page version information, replacing a corresponding page in the second page-structure file with a page in the first page-structure file. comparing one by one version information of each page in the first page-structure file with version information of each page in the second page-structure file; and for pages of different page version information, replacing a corresponding page in the second page-structure file with a page in the first page-structure file.