A method for measuring and displaying a factor includes: sensing a factor by using a sensing unit, which is movable in a plane, a curved surface, or a space where the factor for sensing is generated or contained and senses the factor; photographing the plane, the curved surface, or the space; simultaneously recognizing a position of the sensing unit by targeting the sound sensing unit when sensing the factor in the step of sensing; generating a factor map data by mapping the factor sensed in the step of sensing onto the position sensed in the step of recognizing; overlaying the factor map data with the picture data; and displaying the factor map data overlaid with the picture data.