The present disclosure relates to a confocal imaging apparatus using a chromatic aberration lens, which is capable of quickly implementing multiple tomographic images by making it possible to quickly scan the entire object without moving the light source or the object. Since the present invention is configured to generate a three-dimensional image using multiple tomographic images by a chromatic aberration lens without moving the light source or the object up and down, there is an effect of remarkably shortening the time it takes to implement the multiple tomographic images.