Method and apparatus for managing user's private data in multi function product

A method and an apparatus for managing user data in a multi-function peripheral are provided to divide a data storage unit into a predetermined number of use regions, respectively allocate the user regions to users and allow the users to access only the regions allocated thereto through authentication to prevent private data of a user from being opened to other users. An apparatus for managing user data includes a user authentication unit(110), a storage unit(130), and a controller(120). The user authentication unit receives user information and performs user authentication. The storage unit is divided into a predetermined number of user regions each of which stores user data. Only the regions allocated to authenticated users among the user regions are accessible. The controller reads data stored in the regions allocated to the authenticated users.