A multimedia apparatus and a method for providing content thereof are provided. In the method for providing content of the multimedia apparatus, user private information corresponding to authentication information of a user is acquired when the authentication information of the user for execution of content is received, a state of the user using at least one sensor is detected during reproduction of the content, a parameter of the content is changed according to the acquired private information and the state of the user, and the content is reproduced with the changed parameter.