Apparatus and method for interactive user interface changing according to strength of the stream of breath

PURPOSE: An apparatus and a method for interactive user interface changing according to strength of a stream of breath are provided to add an entertainment component to an ID of a mobile communication terminal by providing a UI changing depending on the strength of a stream of breath. CONSTITUTION: A sensor(140) outputs a strength value of detected breath stream, and a memory(130) stores interactive image data responding to the stream of breath in real time. A control unit(100) loads the interactive image data corresponding to the strength of stream of breath and configures an interactive image changing the strength of a stream of the breath in interactive image data. A display unit(110) displays the interactive image under the control of the control unit.