Data link tracking and data updating method and device and data management system

The invention discloses a data link tracking and data updating method and device and a data management system, and the method comprises the steps: firstly, carrying out the authority verification of a data user in response to a data use request of the data user; then, after the permission verification succeeds, the data owning party is controlled to send data corresponding to the data use request to the data using party, and a data calling record is generated; and when the data stored by the data owner is updated, determining a data user corresponding to the updated data according to the data calling record so as to perform data updating on the corresponding data user according to the updated data. By adopting the embodiment of the invention, the data can be transmitted and the data calling record can be generated after the authority verification of the data user is successful, and when the data of the data owner is updated, the data calling record is utilized to update the data of the corresponding data user