A method for operating a menu of a multimedia disk is provided. The method includes first selecting an item in the menu as a focus point and using a cursor controller for moving a cursor in the menu. An input event issued by the cursor controller is then translated into an input event of a key on a keyboard based on a relative position between the cursor and the focus point, so as to shift or select a target title. Consequently, a user can operate the menu of the multimedia disk in a computer system by using the cursor controller, and the convenience of operating the menu can be improved.