A mobile terminal and controlling method thereof are disclosed, by which restoration and backup operations are performed for the mobile terminal. The present invention includes backing up data for at least one application included in a backup target terminal and restoring the data for the at least one application in a restoration target terminal, the restoring including the performing a basic restoration operation on the data related to the at least one application, determining whether a previously provided restoration error occurs in a data restoring process for a specific application among the at least one or more applications, and performing a restoration operation corresponding to the restoration error in accordance with a result of the determining.