Fecha de publicación: 23/07/2024 Fuente: Wipo "BigData" The invention is suitable for the technical field of privacy protection, and provides a privacy protection management method and system for cloud computing big data. The method comprises the following steps of: screening a plurality of standard management users and a plurality of pieces of standard privacy information by acquiring privacy management authorities of a plurality of registered management users; screening target sensitive information; matching a plurality of related management users, and calculating a plurality of privacy accurate proportions; selecting a target management user; and processing the target sensitive information, generating target processing information, and performing information replacement publishing. A plurality of pieces of sensitive release information can be periodically acquired, privacy accurate calculation and comparison are performed, target sensitive information is screened, a plurality of related management users are matched from a plurality of standard management users, a plurality of privacy accurate proportions are calculated, a target management user is selected, and then the sensitive release information is obtained according to privacy feedback information. Information processing and replacement publishing of the target sensitive information are carried out, privacy protection management of the publicly published information is realized, and the problem of privacy disclosure of the published information is avoided.