1. A method for recovering meta data, comprising: confirming whether a directory hierarchical structure included in recovery information is generated and generating the directory hierarchical structure according to confirmed results, when the recovery information is received from a meta data server; confirming whether meta data corresponding to the recovery information are already present, when the directory hierarchical structure is generated; comparing time information included in the recovery information with storage time included in already recovered meta data, when the meta data corresponding to the recovery information are already present; and moving the already recovered meta data to a wastebasket storage area and deleting the meta data when the time information included in the recovery information is later than the storage time included in the already recovered meta data and recovering the meta data corresponding to the recovery information.