Abstract: The present disclosure relates to folder-based data organization method and system. The method may include obtaining a keyword hierarchy for a plurality of documents. The keyword hierarchy may be configured for organizing the plurality of documents and include a plurality of levels for the keyword hierarchy. The method may further include generating a folder directory in a data storage system based on the keyword hierarchy. A folder hierarchy of the folder directory reflects at least a portion of the keyword hierarchy and folders in the folder hierarchy are named based on corresponding keywords in the at least a portion of the keyword hierarchy. The method may further include determining a target folder for storing one of the documents in the folder directory based on the keyword hierarchy path associated with the document and storing the document to the target folder in the folder directory.