The invention discloses a file management method and a file management system using a virtual storage directory. In the system, files and the directory are organized in a structural mode, wherein nodes record the positions of the application, files, and directory and the storage and access strategies, wherein the storage and access strategies comprise information such as a synchronization strategy, a storage address, reference counting, authorized management and the like, and the files in the network are effectively organized together in a virtual directory mode. According to the invention, a transparent file management and calling method of cloud storage is provided for users, and file version management and data synchronization of distributed storage are realized conveniently.