Device and method for providing floating user interface

PURPOSE: A floating user interface providing device and a method therefor are provided to execute a terminal function through a floating user interface (UI), thereby conveniently executing the terminal function through the floating UI in any environment. CONSTITUTION: A display unit (22) displays a floating UI including menus with respect to terminal functions. A control unit (10) displays the floating UI on the display unit according to the request by a user input means, and performs the terminal function corresponding to the menu included in the floating UI according to the execution request with respect to the menu. The user input means includes a touch input means and a pointing input means, and the control unit displays the floating UI on the most upper layer of the display unit. [Reference numerals] (10) Control unit; (11) UI composition unit; (20) Touch screen unit; (21) Touch sensor unit; (22) Display unit; (30) Storage unit