Application layer file hiding method under NTFS file system

The invention discloses an application layer file hiding method under an NTFS file system and belongs to the field of information safety. The method is based on the application layer and not related to system kernel, and the method only needs to operate a control end program on a mainframe requiring file hiding. The method mainly includes a file hiding module and a file recovery module. The file hiding module is used for hiding files in a file storage medium based on the NTFS file system, and the hidden files are independent of the file system. The file recovery module is used for recovering the hidden files to the NTFS file system so as to display the files. By the method high in operability, lightweight file hiding under the NTFS file system is achieved, information safety can be increased greatly, and data integrity can be protected.