A method and an apparatus for reconstructing a standby node database. The method includes 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, where 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 indicating 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. In the embodiments of the present disclosure, the standby node database is reconstructed in an incremental backup manner which can shorten a time for reconstructing the standby node database.