Image splitting device for videoendoscope, comprising an image splitting optical component to form on the sensitive surface of a video sensor housed in the distal end part of a videoendoscope a single composite image formed from two images of an observed target, viewed from two different angles; the image splitting optical component comprises two sections of identical convergent lenses, integrated into an opaque central element, maintaining the space between the two sections of lenses, each of the two sections of lenses are at least equal to a half-moon so that it is crossed by the optical axes of the lens.